diff --git a/.changeset/swift-weeks-act.md b/.changeset/swift-weeks-act.md
new file mode 100644
index 00000000000..a845151cc84
--- /dev/null
+++ b/.changeset/swift-weeks-act.md
@@ -0,0 +1,2 @@
+---
+---
diff --git a/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/DocumentMemberDeserVisitor.java b/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/DocumentMemberDeserVisitor.java
index 22e24ade9aa..d22cf96157e 100644
--- a/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/DocumentMemberDeserVisitor.java
+++ b/smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/DocumentMemberDeserVisitor.java
@@ -279,7 +279,7 @@ public final String structureShape(StructureShape shape) {
     }
 
     @Override
-    public final String unionShape(UnionShape shape) {
+    public String unionShape(UnionShape shape) {
         context.getWriter().addImport("expectUnion", "__expectUnion", TypeScriptDependency.AWS_SMITHY_CLIENT);
         return getDelegateDeserializer(shape, "__expectUnion(" + dataSource + ")");
     }