1 files changed, 10 insertions, 10 deletions
diff --git a/test/cpp/qps/server_callback.cc b/test/cpp/qps/server_callback.cc
index 10f37c1041..e05f736470 100644
--- a/test/cpp/qps/server_callback.cc
+++ b/test/cpp/qps/server_callback.cc
@@ -33,26 +33,26 @@ namespace testing {
 class BenchmarkCallbackServiceImpl final
     : public BenchmarkService::CallbackService {
  public:
-  grpc::ServerUnaryReactor* UnaryCall(grpc::CallbackServerContext* context,
-                                      const SimpleRequest* request,
-                                      SimpleResponse* response) override {
+  ::grpc::ServerUnaryReactor* UnaryCall(::grpc::CallbackServerContext* context,
+                                        const SimpleRequest* request,
+                                        SimpleResponse* response) override {
     auto* reactor = context->DefaultReactor();
     reactor->Finish(SetResponse(request, response));
     return reactor;
   }
 
-  grpc::ServerBidiReactor<::grpc::testing::SimpleRequest,
-                          grpc::testing::SimpleResponse>*
-  StreamingCall(grpc::CallbackServerContext*) override {
+  ::grpc::ServerBidiReactor<::grpc::testing::SimpleRequest,
+                            ::grpc::testing::SimpleResponse>*
+  StreamingCall(::grpc::CallbackServerContext*) override {
     class Reactor
-        : public grpc::ServerBidiReactor<::grpc::testing::SimpleRequest,
-                                         grpc::testing::SimpleResponse> {
+        : public ::grpc::ServerBidiReactor<::grpc::testing::SimpleRequest,
+                                           ::grpc::testing::SimpleResponse> {
      public:
       Reactor() { StartRead(&request_); }
 
       void OnReadDone(bool ok) override {
         if (!ok) {
-          Finish(grpc::Status::OK);
+          Finish(::grpc::Status::OK);
           return;
         }
         auto s = SetResponse(&request_, &response_);
@@ -65,7 +65,7 @@ class BenchmarkCallbackServiceImpl final
 
       void OnWriteDone(bool ok) override {
         if (!ok) {
-          Finish(grpc::Status::OK);
+          Finish(::grpc::Status::OK);
           return;
         }
         StartRead(&request_);