diff --git a/bitfields_impl/src/generating/bitfield/features/bitfield_struct_feature.rs b/bitfields_impl/src/generating/bitfield/features/bitfield_struct_feature.rs
index 1a99875..f88075e 100644
--- a/bitfields_impl/src/generating/bitfield/features/bitfield_struct_feature.rs
+++ b/bitfields_impl/src/generating/bitfield/features/bitfield_struct_feature.rs
@@ -87,7 +87,7 @@ impl BitfieldStructFeatureGenerator {
                 });
             } else {
                 attributes_tokens.push(quote! {
-                    #[derive(std::marker::Copy, core::clone::Clone)]
+                    #[derive(core::marker::Copy, core::clone::Clone)]
                 });
             }
         }
diff --git a/bitfields_impl/src/generating/bitflag/bitflag_generator.rs b/bitfields_impl/src/generating/bitflag/bitflag_generator.rs
index 90afbd9..fe95e09 100644
--- a/bitfields_impl/src/generating/bitflag/bitflag_generator.rs
+++ b/bitfields_impl/src/generating/bitflag/bitflag_generator.rs
@@ -40,7 +40,7 @@ fn generate_repr_tokens(bitflag: &Bitflag) -> TokenStream {
 fn generate_copy_derive_tokens(bitflag: &Bitflag) -> TokenStream {
     if bitflag.arguments().derive_copy() {
         quote! {
-            #[derive(std::marker::Copy, core::clone::Clone)]
+            #[derive(core::marker::Copy, core::clone::Clone)]
         }
     } else {
         quote! {}