diff --git a/src/cpp/ext/chaotic_good.h b/src/cpp/ext/chaotic_good.h
index 6d8b404d1ca..b203f473e59 100644
--- a/src/cpp/ext/chaotic_good.h
+++ b/src/cpp/ext/chaotic_good.h
@@ -27,4 +27,4 @@ std::shared_ptr<ServerCredentials> ChaoticGoodInsecureServerCredentials();
 
 }  // namespace grpc
 
-#endif
+#endif  // GRPC_SRC_CPP_EXT_CHAOTIC_GOOD_H