diff --git a/codegen/smithy-aws-typescript-codegen/src/main/java/software/amazon/smithy/aws/typescript/codegen/AddS3Config.java b/codegen/smithy-aws-typescript-codegen/src/main/java/software/amazon/smithy/aws/typescript/codegen/AddS3Config.java
index bb7df1bb9b3d..2f765ac20203 100644
--- a/codegen/smithy-aws-typescript-codegen/src/main/java/software/amazon/smithy/aws/typescript/codegen/AddS3Config.java
+++ b/codegen/smithy-aws-typescript-codegen/src/main/java/software/amazon/smithy/aws/typescript/codegen/AddS3Config.java
@@ -272,7 +272,7 @@ && containsInputMembers(m, o, BUCKET_ENDPOINT_INPUT_KEYS))
             RuntimeClientPlugin.builder()
                 .withConventions(AwsDependency.S3_MIDDLEWARE.dependency, "S3ExpiresMiddleware",
                     HAS_MIDDLEWARE)
-                .operationPredicate((m, s, o) -> containsExpiresOutput(m, o))
+                .operationPredicate((m, s, o) -> isS3(s) && containsExpiresOutput(m, o))
                 .build(),
             RuntimeClientPlugin.builder()
                 .withConventions(AwsDependency.S3_MIDDLEWARE.dependency, "S3Express",