diff --git a/pkgs/http/README.md b/pkgs/http/README.md
index 7cc9f43fbb..07e4394eae 100644
--- a/pkgs/http/README.md
+++ b/pkgs/http/README.md
@@ -75,6 +75,7 @@ class UserAgentClient extends http.BaseClient {
 
   UserAgentClient(this.userAgent, this._inner);
 
+  @override
   Future<http.StreamedResponse> send(http.BaseRequest request) {
     request.headers['user-agent'] = userAgent;
     return _inner.send(request);