diff --git a/Cargo.toml b/Cargo.toml
index 561ee12e05..7d40cf4406 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -534,6 +534,7 @@ storage-samples          = { path = "src/storage/examples" }
 storage-grpc-mock        = { path = "src/storage/grpc-mock" }
 
 [workspace.lints.rust]
+missing_docs = "warn"
 unexpected_cfgs = { level = "deny", check-cfg = [
   'cfg(google_cloud_unstable_grpc_server_streaming)',
   'cfg(google_cloud_unstable_storage_bidi)',
diff --git a/guide/samples/src/bin/getting_started.rs b/guide/samples/src/bin/getting_started.rs
index 5234c4918c..b7fea589fe 100644
--- a/guide/samples/src/bin/getting_started.rs
+++ b/guide/samples/src/bin/getting_started.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 // ANCHOR: all
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
diff --git a/guide/samples/src/lib.rs b/guide/samples/src/lib.rs
index 15e4b77684..761f1fbc9a 100644
--- a/guide/samples/src/lib.rs
+++ b/guide/samples/src/lib.rs
@@ -15,6 +15,8 @@
 //! This crate contains a number of guides showing how to use the
 //! Google Cloud Client Libraries for Rust.
 
+#![allow(missing_docs)]
+
 pub mod authentication;
 pub mod binding_errors;
 pub mod compute;
diff --git a/src/auth/build.rs b/src/auth/build.rs
index 6329cb3deb..ec8e672b91 100644
--- a/src/auth/build.rs
+++ b/src/auth/build.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use std::fs::File;
 use std::io::Write;
 use std::path::Path;
diff --git a/src/auth/tests/credentials.rs b/src/auth/tests/credentials.rs
index 0b4898067d..10c2cbbf0a 100644
--- a/src/auth/tests/credentials.rs
+++ b/src/auth/tests/credentials.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 #[cfg(test)]
 mod tests {
     use google_cloud_auth::credentials::EntityTag;
diff --git a/src/auth/tests/crypto_provider.rs b/src/auth/tests/crypto_provider.rs
index e4f593882a..b2fb76de3d 100644
--- a/src/auth/tests/crypto_provider.rs
+++ b/src/auth/tests/crypto_provider.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use google_cloud_auth::credentials::*;
 
 #[cfg(test)]
diff --git a/src/gax-internal/build.rs b/src/gax-internal/build.rs
index 5aee48c758..22f2cfd140 100644
--- a/src/gax-internal/build.rs
+++ b/src/gax-internal/build.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use std::fs::File;
 use std::io::Write;
 use std::path::Path;
diff --git a/src/gax-internal/echo-server/src/lib.rs b/src/gax-internal/echo-server/src/lib.rs
index 9e1943d568..95458384e9 100644
--- a/src/gax-internal/echo-server/src/lib.rs
+++ b/src/gax-internal/echo-server/src/lib.rs
@@ -17,6 +17,8 @@
 //! Setting up integration tests is a bit complicated. So we refactor that code
 //! to some helper functions.
 
+#![allow(missing_docs)]
+
 use axum::{
     extract::Query,
     http::{HeaderMap, StatusCode},
diff --git a/src/gax-internal/grpc-server/build.rs b/src/gax-internal/grpc-server/build.rs
index 41390768ea..66edd185fb 100644
--- a/src/gax-internal/grpc-server/build.rs
+++ b/src/gax-internal/grpc-server/build.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 fn main() {
     #[cfg(google_cloud_generate_protos)]
     {
diff --git a/src/gax-internal/grpc-server/src/lib.rs b/src/gax-internal/grpc-server/src/lib.rs
index 7238643de3..45008ae9f8 100644
--- a/src/gax-internal/grpc-server/src/lib.rs
+++ b/src/gax-internal/grpc-server/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use google::test::v1::{EchoRequest, EchoResponse};
 use google_cloud_auth::credentials::Credentials;
 use google_cloud_gax::client_builder::ClientBuilder;
diff --git a/src/gax-internal/src/lib.rs b/src/gax-internal/src/lib.rs
index 6d403e5ed3..7f6cbfae51 100644
--- a/src/gax-internal/src/lib.rs
+++ b/src/gax-internal/src/lib.rs
@@ -24,6 +24,8 @@
 //! This is intentional, as they are not intended for general use and will be
 //! changed without notice.
 
+#![allow(missing_docs)]
+
 #[cfg(feature = "_internal-common")]
 pub mod api_header;
 
diff --git a/src/spanner/src/lib.rs b/src/spanner/src/lib.rs
index e9ff6f4937..073c86d9a1 100644
--- a/src/spanner/src/lib.rs
+++ b/src/spanner/src/lib.rs
@@ -20,6 +20,9 @@
 //! about the APIs, documentation, missing features, bugs, etc.
 //!
 
+// TODO(#5537): Remove this allow once all public APIs are documented.
+#![allow(missing_docs)]
+
 pub use batch_dml::BatchDml;
 pub use batch_dml::BatchDmlBuilder;
 pub use batch_read_only_transaction::{
diff --git a/tests/auto-populated/src/lib.rs b/tests/auto-populated/src/lib.rs
index ebcac8164e..bbcfcbe257 100644
--- a/tests/auto-populated/src/lib.rs
+++ b/tests/auto-populated/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 #[cfg(test)]
 mod tests {
     use anyhow::Result;
diff --git a/tests/bigquery/src/lib.rs b/tests/bigquery/src/lib.rs
index 13fa446932..0dee1fb0c7 100644
--- a/tests/bigquery/src/lib.rs
+++ b/tests/bigquery/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use anyhow::Result;
 use futures::stream::StreamExt;
 use google_cloud_bigquery_v2::client::{DatasetService, JobService};
diff --git a/tests/crypto-providers/auth-with-default/src/main.rs b/tests/crypto-providers/auth-with-default/src/main.rs
index 5c580649de..7a3af4edf2 100644
--- a/tests/crypto-providers/auth-with-default/src/main.rs
+++ b/tests/crypto-providers/auth-with-default/src/main.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
     test_metadata::has_default_crypto_provider(env!("CARGO"), env!("CARGO_MANIFEST_DIR"))?;
diff --git a/tests/crypto-providers/auth-without-default/src/main.rs b/tests/crypto-providers/auth-without-default/src/main.rs
index 82dbcb3a38..40d840d22f 100644
--- a/tests/crypto-providers/auth-without-default/src/main.rs
+++ b/tests/crypto-providers/auth-without-default/src/main.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use rustls::crypto::{CryptoProvider, ring::default_provider};
 
 #[tokio::main]
diff --git a/tests/crypto-providers/gaxi-with-aws-lc-rs/src/main.rs b/tests/crypto-providers/gaxi-with-aws-lc-rs/src/main.rs
index 4f76232048..b51433bc14 100644
--- a/tests/crypto-providers/gaxi-with-aws-lc-rs/src/main.rs
+++ b/tests/crypto-providers/gaxi-with-aws-lc-rs/src/main.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use rustls::crypto::{CryptoProvider, aws_lc_rs::default_provider};
 
 #[tokio::main]
diff --git a/tests/crypto-providers/gaxi-with-default/src/main.rs b/tests/crypto-providers/gaxi-with-default/src/main.rs
index b66d1f1b04..679cb7f809 100644
--- a/tests/crypto-providers/gaxi-with-default/src/main.rs
+++ b/tests/crypto-providers/gaxi-with-default/src/main.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
     test_metadata::has_default_crypto_provider(env!("CARGO"), env!("CARGO_MANIFEST_DIR"))?;
diff --git a/tests/crypto-providers/gaxi-with-ring/src/main.rs b/tests/crypto-providers/gaxi-with-ring/src/main.rs
index 0fa1fa8dc8..0a32b38dd1 100644
--- a/tests/crypto-providers/gaxi-with-ring/src/main.rs
+++ b/tests/crypto-providers/gaxi-with-ring/src/main.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use rustls::crypto::{CryptoProvider, ring::default_provider};
 
 #[tokio::main]
diff --git a/tests/crypto-providers/idtoken-with-aws-lc-rs/src/main.rs b/tests/crypto-providers/idtoken-with-aws-lc-rs/src/main.rs
index ad16dbf6e5..e07db23ce3 100644
--- a/tests/crypto-providers/idtoken-with-aws-lc-rs/src/main.rs
+++ b/tests/crypto-providers/idtoken-with-aws-lc-rs/src/main.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use google_cloud_auth::credentials::idtoken::verifier::Builder;
 
 fn main() -> anyhow::Result<()> {
diff --git a/tests/crypto-providers/idtoken-with-default/src/main.rs b/tests/crypto-providers/idtoken-with-default/src/main.rs
index be29a7b007..b7befcc9f1 100644
--- a/tests/crypto-providers/idtoken-with-default/src/main.rs
+++ b/tests/crypto-providers/idtoken-with-default/src/main.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use google_cloud_auth::credentials::idtoken::verifier::Builder;
 
 fn main() -> anyhow::Result<()> {
diff --git a/tests/crypto-providers/idtoken-with-rust-crypto/src/main.rs b/tests/crypto-providers/idtoken-with-rust-crypto/src/main.rs
index f21bd5be0d..47a7f90716 100644
--- a/tests/crypto-providers/idtoken-with-rust-crypto/src/main.rs
+++ b/tests/crypto-providers/idtoken-with-rust-crypto/src/main.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use google_cloud_auth::credentials::idtoken::verifier::Builder;
 
 fn main() -> anyhow::Result<()> {
diff --git a/tests/crypto-providers/secret-manager-with-aws-lc-rs/src/main.rs b/tests/crypto-providers/secret-manager-with-aws-lc-rs/src/main.rs
index f98dc9f948..ffd381564d 100644
--- a/tests/crypto-providers/secret-manager-with-aws-lc-rs/src/main.rs
+++ b/tests/crypto-providers/secret-manager-with-aws-lc-rs/src/main.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use rustls::crypto::{CryptoProvider, aws_lc_rs::default_provider};
 
 #[tokio::main]
diff --git a/tests/crypto-providers/secret-manager-with-default/src/main.rs b/tests/crypto-providers/secret-manager-with-default/src/main.rs
index 1bfbdf638a..9c5781a36a 100644
--- a/tests/crypto-providers/secret-manager-with-default/src/main.rs
+++ b/tests/crypto-providers/secret-manager-with-default/src/main.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
     test_metadata::has_default_crypto_provider(env!("CARGO"), env!("CARGO_MANIFEST_DIR"))?;
diff --git a/tests/crypto-providers/secret-manager-with-ring/src/main.rs b/tests/crypto-providers/secret-manager-with-ring/src/main.rs
index 2c3ac4263f..78a93fc1a5 100644
--- a/tests/crypto-providers/secret-manager-with-ring/src/main.rs
+++ b/tests/crypto-providers/secret-manager-with-ring/src/main.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use rustls::crypto::{CryptoProvider, ring::default_provider};
 
 #[tokio::main]
diff --git a/tests/crypto-providers/storage-with-aws-lc-rs/src/main.rs b/tests/crypto-providers/storage-with-aws-lc-rs/src/main.rs
index 80e272940b..1d116e4bf9 100644
--- a/tests/crypto-providers/storage-with-aws-lc-rs/src/main.rs
+++ b/tests/crypto-providers/storage-with-aws-lc-rs/src/main.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use rustls::crypto::{CryptoProvider, aws_lc_rs::default_provider};
 
 #[tokio::main]
diff --git a/tests/crypto-providers/storage-with-default/src/main.rs b/tests/crypto-providers/storage-with-default/src/main.rs
index 7fb7e8c874..220abea7bb 100644
--- a/tests/crypto-providers/storage-with-default/src/main.rs
+++ b/tests/crypto-providers/storage-with-default/src/main.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
     test_metadata::has_default_crypto_provider(env!("CARGO"), env!("CARGO_MANIFEST_DIR"))?;
diff --git a/tests/crypto-providers/storage-with-ring/src/main.rs b/tests/crypto-providers/storage-with-ring/src/main.rs
index d339c66f99..d8b153b20f 100644
--- a/tests/crypto-providers/storage-with-ring/src/main.rs
+++ b/tests/crypto-providers/storage-with-ring/src/main.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use rustls::crypto::{CryptoProvider, ring::default_provider};
 
 #[tokio::main]
diff --git a/tests/crypto-providers/test-auth/src/lib.rs b/tests/crypto-providers/test-auth/src/lib.rs
index 9687dc9cdd..6892c91cde 100644
--- a/tests/crypto-providers/test-auth/src/lib.rs
+++ b/tests/crypto-providers/test-auth/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use anyhow::bail;
 use std::time::Duration;
 
diff --git a/tests/crypto-providers/test-gaxi/src/lib.rs b/tests/crypto-providers/test-gaxi/src/lib.rs
index 4a958983e7..a0fc64c3a6 100644
--- a/tests/crypto-providers/test-gaxi/src/lib.rs
+++ b/tests/crypto-providers/test-gaxi/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use anyhow::bail;
 use google_cloud_auth::credentials::Builder as CredentialsBuilder;
 use google_cloud_gax::options::RequestOptions;
diff --git a/tests/crypto-providers/test-metadata/src/lib.rs b/tests/crypto-providers/test-metadata/src/lib.rs
index f4150a85f5..1a6cc7db4f 100644
--- a/tests/crypto-providers/test-metadata/src/lib.rs
+++ b/tests/crypto-providers/test-metadata/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use anyhow::bail;
 use cargo_metadata::{
     FeatureName, Metadata, MetadataCommand, PackageId, PackageName, semver::Version,
diff --git a/tests/crypto-providers/test-secret-manager/src/lib.rs b/tests/crypto-providers/test-secret-manager/src/lib.rs
index 8caac61372..95f0c80881 100644
--- a/tests/crypto-providers/test-secret-manager/src/lib.rs
+++ b/tests/crypto-providers/test-secret-manager/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use google_cloud_gax::paginator::ItemPaginator as _;
 use google_cloud_secretmanager_v1::Error;
 use google_cloud_secretmanager_v1::client::SecretManagerService;
diff --git a/tests/crypto-providers/test-storage/src/lib.rs b/tests/crypto-providers/test-storage/src/lib.rs
index d2f1b0957e..f90a80dd90 100644
--- a/tests/crypto-providers/test-storage/src/lib.rs
+++ b/tests/crypto-providers/test-storage/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use google_cloud_gax::paginator::ItemPaginator as _;
 use google_cloud_storage::Error;
 use google_cloud_storage::client::{Storage, StorageControl};
diff --git a/tests/default-idempotency/src/lib.rs b/tests/default-idempotency/src/lib.rs
index 8c4cad0fc9..e6a1b537f9 100644
--- a/tests/default-idempotency/src/lib.rs
+++ b/tests/default-idempotency/src/lib.rs
@@ -19,6 +19,8 @@
 //! idempotent or not. We use this to verify that the operation's default
 //! idempotency is correct.
 
+#![allow(missing_docs)]
+
 #[cfg(test)]
 mod tests {
     type Result = anyhow::Result<()>;
diff --git a/tests/discovery/src/lib.rs b/tests/discovery/src/lib.rs
index ea968ab83a..c61a100153 100644
--- a/tests/discovery/src/lib.rs
+++ b/tests/discovery/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use anyhow::Result;
 use google_cloud_auth::credentials::anonymous::Builder as Anonymous;
 use google_cloud_compute_v1::client::{Images, Instances, MachineTypes, Zones};
diff --git a/tests/dns/src/lib.rs b/tests/dns/src/lib.rs
index c8cd04ab1e..c7525d2721 100644
--- a/tests/dns/src/lib.rs
+++ b/tests/dns/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use google_cloud_dns_v1::{client::ManagedZones, model::ManagedZone};
 use google_cloud_gax::paginator::ItemPaginator as _;
 use google_cloud_lro::Poller as _;
diff --git a/tests/endurance/src/main.rs b/tests/endurance/src/main.rs
index 7530b80728..12f71775d5 100644
--- a/tests/endurance/src/main.rs
+++ b/tests/endurance/src/main.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use google_cloud_gax::{
     options::RequestOptionsBuilder,
     paginator::ItemPaginator,
diff --git a/tests/enums-query-parameters/src/lib.rs b/tests/enums-query-parameters/src/lib.rs
index 907b3a30d3..8e2a1a598f 100644
--- a/tests/enums-query-parameters/src/lib.rs
+++ b/tests/enums-query-parameters/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use anyhow::Result;
 use google_cloud_gax::exponential_backoff::{ExponentialBackoff, ExponentialBackoffBuilder};
 use google_cloud_gax::options::RequestOptionsBuilder;
diff --git a/tests/integration-auth/src/lib.rs b/tests/integration-auth/src/lib.rs
index 62f606eb2b..0d8fd80ef7 100644
--- a/tests/integration-auth/src/lib.rs
+++ b/tests/integration-auth/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use google_cloud_auth::credentials::idtoken::{
     Builder as IDTokenCredentialBuilder, impersonated::Builder as ImpersonatedIDTokenBuilder,
     mds::Builder as IDTokenMDSBuilder, mds::Format,
diff --git a/tests/integration/src/lib.rs b/tests/integration/src/lib.rs
index 87fa08d4cf..d664ba41ba 100644
--- a/tests/integration/src/lib.rs
+++ b/tests/integration/src/lib.rs
@@ -12,4 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 pub mod error_details;
diff --git a/tests/locational-endpoints/src/lib.rs b/tests/locational-endpoints/src/lib.rs
index b5aa2517b3..31e2198e0e 100644
--- a/tests/locational-endpoints/src/lib.rs
+++ b/tests/locational-endpoints/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use google_cloud_aiplatform_v1::client::ModelService;
 use google_cloud_test_utils::runtime_config::{project_id, region_id};
 
diff --git a/tests/lro/src/lib.rs b/tests/lro/src/lib.rs
index 34dcc0b802..0e7876c69d 100644
--- a/tests/lro/src/lib.rs
+++ b/tests/lro/src/lib.rs
@@ -12,5 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 pub mod fake;
 pub mod production;
diff --git a/tests/o11y/src/lib.rs b/tests/o11y/src/lib.rs
index cffb1e2414..4131f91f8b 100644
--- a/tests/o11y/src/lib.rs
+++ b/tests/o11y/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 pub mod auth;
 pub mod detector;
 pub mod mock_collector;
diff --git a/tests/openapi/src/lib.rs b/tests/openapi/src/lib.rs
index 4a6433bda9..20ff13f6f5 100644
--- a/tests/openapi/src/lib.rs
+++ b/tests/openapi/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 pub mod global;
 pub mod locational;
 
diff --git a/tests/protobuf/src/lib.rs b/tests/protobuf/src/lib.rs
index efd28615d8..2c9c039214 100644
--- a/tests/protobuf/src/lib.rs
+++ b/tests/protobuf/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 mod mocking;
 mod pagination;
 
diff --git a/tests/protojson-conformance/src/lib.rs b/tests/protojson-conformance/src/lib.rs
index 23ee91128a..4689946f4c 100644
--- a/tests/protojson-conformance/src/lib.rs
+++ b/tests/protojson-conformance/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 pub mod generated;
 
 pub mod conformance {
diff --git a/tests/protojson-conformance/src/main.rs b/tests/protojson-conformance/src/main.rs
index e0130314c4..f318a397b4 100644
--- a/tests/protojson-conformance/src/main.rs
+++ b/tests/protojson-conformance/src/main.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use prost::{
     Message,
     bytes::{Buf, BufMut},
diff --git a/tests/pubsub/src/lib.rs b/tests/pubsub/src/lib.rs
index 75abc04bd9..300fc21ad8 100644
--- a/tests/pubsub/src/lib.rs
+++ b/tests/pubsub/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 pub mod exactly_once;
 pub mod ordering;
 
diff --git a/tests/showcase/src/lib.rs b/tests/showcase/src/lib.rs
index 8738efe7c4..59f05cb927 100644
--- a/tests/showcase/src/lib.rs
+++ b/tests/showcase/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 use anyhow::{Error, Result};
 use google_cloud_auth::credentials::anonymous::Builder as Anonymous;
 use google_cloud_gax::options::RequestOptionsBuilder;
diff --git a/tests/spanner/src/lib.rs b/tests/spanner/src/lib.rs
index 6e8370cc76..a081ccb15c 100644
--- a/tests/spanner/src/lib.rs
+++ b/tests/spanner/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 pub mod batch_read_only_transaction;
 pub mod client;
 pub mod directed_read;
diff --git a/tests/storage/src/lib.rs b/tests/storage/src/lib.rs
index 4b0dbe6b7e..5f228e706e 100644
--- a/tests/storage/src/lib.rs
+++ b/tests/storage/src/lib.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![allow(missing_docs)]
+
 pub mod bidi_read;
 pub mod read_object;
 pub mod write_object;