diff --git a/packages/smithy-client/src/index.ts b/packages/smithy-client/src/index.ts
index c72b2f3e0a18..5c6a6545283e 100644
--- a/packages/smithy-client/src/index.ts
+++ b/packages/smithy-client/src/index.ts
@@ -9,4 +9,4 @@ export * from "./ser-utils";
 export * from "./date-utils";
 export * from "./split-every";
 export * from "./constants";
-export { DocumentType, SdkError, SmithyException } from "@aws-sdk/types";
+export type { DocumentType, SdkError, SmithyException } from "@aws-sdk/types";