diff --git a/src/objective-c/GRPCClient/GRPCCall.h b/src/objective-c/GRPCClient/GRPCCall.h
index 91f2942c985b3b7e012e15cc6a13b216ec8292e7..5918f8857a9bccbfa9ec69ed38613f3959cdd702 100644
--- a/src/objective-c/GRPCClient/GRPCCall.h
+++ b/src/objective-c/GRPCClient/GRPCCall.h
@@ -241,5 +241,5 @@ extern id const kGRPCTrailersKey;
  */
 - (void)cancel;
 
-/** TODO(jcanizales): Let specify a deadline. As a category of GRXWriter? */
+// TODO(jcanizales): Let specify a deadline. As a category of GRXWriter?
 @end