diff --git a/crates/tests/libs/rdl/src/lib.rs b/crates/tests/libs/rdl/src/lib.rs
index 74b606770d2..4549a3e41db 100644
--- a/crates/tests/libs/rdl/src/lib.rs
+++ b/crates/tests/libs/rdl/src/lib.rs
@@ -1,4 +1,3 @@
-pub mod flags_enum;
 mod fn_abi;
 pub mod struct_fields;
 pub mod struct_values;
diff --git a/crates/tests/libs/rdl/tests/flags_enum.rs b/crates/tests/libs/rdl/tests/flags_enum.rs
deleted file mode 100644
index b2f6f3fff54..00000000000
--- a/crates/tests/libs/rdl/tests/flags_enum.rs
+++ /dev/null
@@ -1,53 +0,0 @@
-use test_rdl::flags_enum::Test::*;
-
-#[test]
-fn test() {
-    windows_rdl::reader()
-        .input("tests/flags_enum.rdl")
-        .output("tests/flags_enum.winmd")
-        .write()
-        .unwrap();
-
-    windows_rdl::writer()
-        .input("tests/flags_enum.winmd")
-        .output("tests/flags_enum.rdl")
-        .filter("Test")
-        .write()
-        .unwrap();
-
-    windows_bindgen::bindgen([
-        "--in",
-        "tests/flags_enum.winmd",
-        "--out",
-        "src/flags_enum.rs",
-        "--filter",
-        "Test",
-        "--no-comment",
-    ])
-    .unwrap();
-
-    // Validates that Win32 flags enums support bitwise operations and contains.
-    let rw = Options::Read | Options::Write;
-    assert_eq!(rw.0, 3);
-    assert!(rw.contains(Options::Read));
-    assert!(rw.contains(Options::Write));
-    assert!(!rw.contains(Options::Execute));
-
-    let read_only = rw & Options::Read;
-    assert_eq!(read_only, Options::Read);
-
-    let mut flags = Options::Read;
-    flags |= Options::Write;
-    assert!(flags.contains(Options::Read));
-    assert!(flags.contains(Options::Write));
-
-    flags &= Options::Read;
-    assert!(flags.contains(Options::Read));
-    assert!(!flags.contains(Options::Write));
-
-    // Validates that flag enum constants can be used as match patterns.
-    match Options::Read {
-        Options::Read => {}
-        _ => unreachable!(),
-    }
-}
diff --git a/crates/tests/libs/rdl/tests/flags_enum.rdl b/crates/tests/roundtrip/bindgen/src/enum_flags.rdl
similarity index 94%
rename from crates/tests/libs/rdl/tests/flags_enum.rdl
rename to crates/tests/roundtrip/bindgen/src/enum_flags.rdl
index 44660025e5d..a2af4304215 100644
--- a/crates/tests/libs/rdl/tests/flags_enum.rdl
+++ b/crates/tests/roundtrip/bindgen/src/enum_flags.rdl
@@ -1,4 +1,4 @@
-#[winrt]
+#[win32]
 mod Test {
     #[repr(u32)]
     #[flags]
diff --git a/crates/tests/libs/rdl/src/flags_enum.rs b/crates/tests/roundtrip/bindgen/src/enum_flags.rs
similarity index 63%
rename from crates/tests/libs/rdl/src/flags_enum.rs
rename to crates/tests/roundtrip/bindgen/src/enum_flags.rs
index 1d85a997eb0..0e54501f7a4 100644
--- a/crates/tests/libs/rdl/src/flags_enum.rs
+++ b/crates/tests/roundtrip/bindgen/src/enum_flags.rs
@@ -1,28 +1,9 @@
-#![allow(
-    non_snake_case,
-    non_upper_case_globals,
-    non_camel_case_types,
-    dead_code,
-    clippy::all
-)]
-
 pub mod Test {
+    pub const Execute: Options = Options(4u32);
+    pub const None: Options = Options(0u32);
     #[repr(transparent)]
     #[derive(Clone, Copy, Debug, Default, Eq, PartialEq)]
     pub struct Options(pub u32);
-    impl Options {
-        pub const None: Self = Self(0u32);
-        pub const Read: Self = Self(1u32);
-        pub const Write: Self = Self(2u32);
-        pub const Execute: Self = Self(4u32);
-    }
-    impl windows_core::TypeKind for Options {
-        type TypeKind = windows_core::CopyType;
-    }
-    impl windows_core::RuntimeType for Options {
-        const SIGNATURE: windows_core::imp::ConstBuffer =
-            windows_core::imp::ConstBuffer::from_slice(b"enum(Test.Options;u4)");
-    }
     impl Options {
         pub const fn contains(&self, other: Self) -> bool {
             self.0 & other.0 == other.0
@@ -56,4 +37,6 @@ pub mod Test {
             Self(self.0.not())
         }
     }
+    pub const Read: Options = Options(1u32);
+    pub const Write: Options = Options(2u32);
 }
diff --git a/crates/tests/roundtrip/bindgen/src/lib.rs b/crates/tests/roundtrip/bindgen/src/lib.rs
index 41e3036b930..8bda3381d44 100644
--- a/crates/tests/roundtrip/bindgen/src/lib.rs
+++ b/crates/tests/roundtrip/bindgen/src/lib.rs
@@ -7,6 +7,7 @@
 )]
 pub mod r#const;
 pub mod r#enum;
+pub mod r#enum_flags;
 pub mod r#enum_name_conflict;
 pub mod r#fn;
 pub mod r#struct;
diff --git a/crates/tests/roundtrip/bindgen/tests/roundtrip.rs b/crates/tests/roundtrip/bindgen/tests/roundtrip.rs
index cc4589c6962..db0fdbff5ef 100644
--- a/crates/tests/roundtrip/bindgen/tests/roundtrip.rs
+++ b/crates/tests/roundtrip/bindgen/tests/roundtrip.rs
@@ -23,6 +23,10 @@ fn roundtrip_enum() {
     run_roundtrip("enum");
 }
 #[test]
+fn roundtrip_enum_flags() {
+    run_roundtrip("enum_flags");
+}
+#[test]
 fn roundtrip_enum_name_conflict() {
     run_roundtrip("enum_name_conflict");
 }