diff --git a/.changeset/silver-comics-fetch.md b/.changeset/silver-comics-fetch.md
new file mode 100644
index 00000000000..9fff0314880
--- /dev/null
+++ b/.changeset/silver-comics-fetch.md
@@ -0,0 +1,5 @@
+---
+"@smithy/experimental-identity-and-auth": patch
+---
+
+Remove extra `$` from `HttpApiKeyAuthSigner`
diff --git a/packages/experimental-identity-and-auth/src/httpApiKeyAuth.ts b/packages/experimental-identity-and-auth/src/httpApiKeyAuth.ts
index f9f9e66dfe6..4eaa287db40 100644
--- a/packages/experimental-identity-and-auth/src/httpApiKeyAuth.ts
+++ b/packages/experimental-identity-and-auth/src/httpApiKeyAuth.ts
@@ -37,7 +37,7 @@ export class HttpApiKeyAuthSigner implements HttpSigner {
       clonedRequest.query[signingProperties.name] = identity.apiKey;
     } else if (signingProperties.in === HttpApiKeyAuthLocation.HEADER) {
       clonedRequest.headers[signingProperties.name] = signingProperties.scheme
-        ? `$${signingProperties.scheme} $${identity.apiKey}`
+        ? `${signingProperties.scheme} ${identity.apiKey}`
         : identity.apiKey;
     } else {
       throw new Error(