diff --git a/packages/util-stream/package.json b/packages/util-stream/package.json
index 8892bf2d8e9..b8717256ea8 100644
--- a/packages/util-stream/package.json
+++ b/packages/util-stream/package.json
@@ -55,20 +55,20 @@
     "dist-*/**"
   ],
   "browser": {
-    "./dist-es/getAwsChunkedEncodingStream": "./dist-es/getAwsChunkedEncodingStream.browser",
     "./dist-es/checksum/createChecksumStream": "./dist-es/checksum/createChecksumStream.browser",
+    "./dist-es/getAwsChunkedEncodingStream": "./dist-es/getAwsChunkedEncodingStream.browser",
     "./dist-es/headStream": "./dist-es/headStream.browser",
     "./dist-es/sdk-stream-mixin": "./dist-es/sdk-stream-mixin.browser",
     "./dist-es/splitStream": "./dist-es/splitStream.browser"
   },
   "react-native": {
-    "./dist-es/getAwsChunkedEncodingStream": "./dist-es/getAwsChunkedEncodingStream.browser",
     "./dist-es/checksum/createChecksumStream": "./dist-es/checksum/createChecksumStream.browser",
+    "./dist-es/getAwsChunkedEncodingStream": "./dist-es/getAwsChunkedEncodingStream.browser",
     "./dist-es/sdk-stream-mixin": "./dist-es/sdk-stream-mixin.browser",
     "./dist-es/headStream": "./dist-es/headStream.browser",
     "./dist-es/splitStream": "./dist-es/splitStream.browser",
-    "./dist-cjs/getAwsChunkedEncodingStream": "./dist-cjs/getAwsChunkedEncodingStream.browser",
     "./dist-cjs/checksum/createChecksumStream": "./dist-cjs/checksum/createChecksumStream.browser",
+    "./dist-cjs/getAwsChunkedEncodingStream": "./dist-cjs/getAwsChunkedEncodingStream.browser",
     "./dist-cjs/sdk-stream-mixin": "./dist-cjs/sdk-stream-mixin.browser",
     "./dist-cjs/headStream": "./dist-cjs/headStream.browser",
     "./dist-cjs/splitStream": "./dist-cjs/splitStream.browser"
diff --git a/packages/util-stream/src/checksum/createChecksumStream.browser.ts b/packages/util-stream/src/checksum/createChecksumStream.browser.ts
index 711c8a2f01b..7dc69867552 100644
--- a/packages/util-stream/src/checksum/createChecksumStream.browser.ts
+++ b/packages/util-stream/src/checksum/createChecksumStream.browser.ts
@@ -114,7 +114,7 @@ export const createChecksumStream = ({
  *
  * @extends ReadableStream
  */
-export class ChecksumStream {}
+export function ChecksumStream(): void {}
 
 if (typeof ReadableStream === "function") {
   ChecksumStream.prototype = Object.create(ReadableStream.prototype);