diff --git a/codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/endpoint/generators/EndpointResolverGenerator.kt b/codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/endpoint/generators/EndpointResolverGenerator.kt
index 385ab13240c99d7ab7eb7a04f708ec089ba44fa5..d4f3fe32f0421d2cd71b8b62738d993e6918f87e 100644
--- a/codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/endpoint/generators/EndpointResolverGenerator.kt
+++ b/codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/endpoint/generators/EndpointResolverGenerator.kt
@@ -221,7 +221,7 @@ internal class EndpointResolverGenerator(stdlib: List<CustomRuntimeFunction>, ru
 
     private fun resolverFnBody(endpointRuleSet: EndpointRuleSet) = writable {
         endpointRuleSet.parameters.toList().forEach {
-            Attribute.AllowUnused.render(this)
+            Attribute.AllowUnusedVariables.render(this)
             rust("let ${it.memberName()} = &$ParamsName.${it.memberName()};")
         }
         generateRulesList(endpointRuleSet.rules)(this)
@@ -291,7 +291,7 @@ internal class EndpointResolverGenerator(stdlib: List<CustomRuntimeFunction>, ru
                     fn.type() is Type.Option ||
                         // TODO(https://github.com/awslabs/smithy/pull/1504): ReterminusCore bug: substring should return `Option<String>`:
                         (fn as Function).name == "substring" -> {
-                        Attribute.AllowUnused.render(this)
+                        Attribute.AllowUnusedVariables.render(this)
                         rustTemplate(
                             "if let Some($resultName) = #{target:W} { #{next:W} }",
                             "target" to target,
diff --git a/codegen-core/src/main/kotlin/software/amazon/smithy/rust/codegen/core/rustlang/RustType.kt b/codegen-core/src/main/kotlin/software/amazon/smithy/rust/codegen/core/rustlang/RustType.kt
index c39af9da0c53bb8a65e594eff0d2d063fba700f3..56ff3d7ef58ba3026a4c136ebb1c5675e6ae19d8 100644
--- a/codegen-core/src/main/kotlin/software/amazon/smithy/rust/codegen/core/rustlang/RustType.kt
+++ b/codegen-core/src/main/kotlin/software/amazon/smithy/rust/codegen/core/rustlang/RustType.kt
@@ -458,7 +458,6 @@ class Attribute(val inner: Writable) {
         val AllowDeprecated = Attribute(allow("deprecated"))
         val AllowIrrefutableLetPatterns = Attribute(allow("irrefutable_let_patterns"))
         val AllowUnreachableCode = Attribute(allow("unreachable_code"))
-        val AllowUnused = Attribute(allow("unused"))
         val AllowUnusedImports = Attribute(allow("unused_imports"))
         val AllowUnusedMut = Attribute(allow("unused_mut"))
         val AllowUnusedVariables = Attribute(allow("unused_variables"))
diff --git a/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedBlobGenerator.kt b/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedBlobGenerator.kt
index acaee289ae0e99fdea13689cd8499b68ff4e9574..0afeac0690cb04de7a65f5e84b8a3952681c8c6f 100644
--- a/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedBlobGenerator.kt
+++ b/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedBlobGenerator.kt
@@ -70,7 +70,7 @@ class ConstrainedBlobGenerator(
         constrainedTypeMetadata.render(writer)
         writer.rust("struct $name(pub(crate) $inner);")
         if (constrainedTypeVisibility == Visibility.PUBCRATE) {
-            Attribute.AllowUnused.render(writer)
+            Attribute.AllowDeadCode.render(writer)
         }
         writer.rust(
             """
diff --git a/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedCollectionGenerator.kt b/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedCollectionGenerator.kt
index c31a215ddfc012fbe5b2a3134517a8ed510228da..8dc227e273cf698cc98b803e4f17ea2e20f7918f 100644
--- a/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedCollectionGenerator.kt
+++ b/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedCollectionGenerator.kt
@@ -95,7 +95,7 @@ class ConstrainedCollectionGenerator(
             *codegenScope,
         )
         if (constrainedTypeVisibility == Visibility.PUBCRATE) {
-            Attribute.AllowUnused.render(writer)
+            Attribute.AllowDeadCode.render(writer)
         }
 
         writer.rustTemplate(
diff --git a/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedMapGenerator.kt b/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedMapGenerator.kt
index bf9dacdd60aa3d9184fb70ffcbfa3a3077104140..a8a891dc3aa50bb7955d4c17073522069e2f3e1d 100644
--- a/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedMapGenerator.kt
+++ b/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedMapGenerator.kt
@@ -80,7 +80,7 @@ class ConstrainedMapGenerator(
         constrainedTypeMetadata.render(writer)
         writer.rustTemplate("struct $name(pub(crate) $inner);", *codegenScope)
         if (constrainedTypeVisibility == Visibility.PUBCRATE) {
-            Attribute.AllowUnused.render(writer)
+            Attribute.AllowDeadCode.render(writer)
         }
         writer.rustTemplate(
             """
diff --git a/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedNumberGenerator.kt b/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedNumberGenerator.kt
index 6e85ac5c8f77c64675d0a076061373c70f8b9f02..863f20af9b450a8ba423255a722b25cc2d86688d 100644
--- a/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedNumberGenerator.kt
+++ b/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedNumberGenerator.kt
@@ -100,7 +100,7 @@ class ConstrainedNumberGenerator(
         writer.rust("struct $name(pub(crate) $unconstrainedTypeName);")
 
         if (constrainedTypeVisibility == Visibility.PUBCRATE) {
-            Attribute.AllowUnused.render(writer)
+            Attribute.AllowDeadCode.render(writer)
         }
         writer.rustTemplate(
             """
diff --git a/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedStringGenerator.kt b/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedStringGenerator.kt
index 2c7fcaa504310e69716b766a4b79933a007ea64f..8c2876f53f57b302a313f08854b96009d754a1e9 100644
--- a/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedStringGenerator.kt
+++ b/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ConstrainedStringGenerator.kt
@@ -89,7 +89,7 @@ class ConstrainedStringGenerator(
         constrainedTypeMetadata.render(writer)
         writer.rust("struct $name(pub(crate) $inner);")
         if (constrainedTypeVisibility == Visibility.PUBCRATE) {
-            Attribute.AllowUnused.render(writer)
+            Attribute.AllowDeadCode.render(writer)
         }
         writer.rust(
             """