diff --git a/test/addons-napi/test_make_callback/binding.cc b/test/addons-napi/test_make_callback/binding.cc
index 952dfcc1cb5bec..83db02b5fe2f4e 100644
--- a/test/addons-napi/test_make_callback/binding.cc
+++ b/test/addons-napi/test_make_callback/binding.cc
@@ -54,6 +54,6 @@ napi_value Init(napi_env env, napi_value exports) {
   return exports;
 }
 
-}  // namespace
+}  // anonymous namespace
 
 NAPI_MODULE(NODE_GYP_MODULE_NAME, Init)
diff --git a/test/addons-napi/test_make_callback_recurse/binding.cc b/test/addons-napi/test_make_callback_recurse/binding.cc
index b99c583d31d9f9..641f9f64237e5d 100644
--- a/test/addons-napi/test_make_callback_recurse/binding.cc
+++ b/test/addons-napi/test_make_callback_recurse/binding.cc
@@ -28,6 +28,6 @@ napi_value Init(napi_env env, napi_value exports) {
   return exports;
 }
 
-}  // namespace
+}  // anonymous namespace
 
 NAPI_MODULE(NODE_GYP_MODULE_NAME, Init)
diff --git a/test/addons/async-hooks-id/binding.cc b/test/addons/async-hooks-id/binding.cc
index d6d0385e617050..e410563a8bb613 100644
--- a/test/addons/async-hooks-id/binding.cc
+++ b/test/addons/async-hooks-id/binding.cc
@@ -22,6 +22,6 @@ void Initialize(Local<Object> exports) {
   NODE_SET_METHOD(exports, "getTriggerAsyncId", GetTriggerAsyncId);
 }
 
-}  // namespace
+}  // anonymous namespace
 
 NODE_MODULE(NODE_GYP_MODULE_NAME, Initialize)
diff --git a/test/addons/async-resource/binding.cc b/test/addons/async-resource/binding.cc
index 83629e757dedfc..857d74c2e62206 100644
--- a/test/addons/async-resource/binding.cc
+++ b/test/addons/async-resource/binding.cc
@@ -109,6 +109,6 @@ void Initialize(Local<Object> exports) {
   NODE_SET_METHOD(exports, "getResource", GetResource);
 }
 
-}  // namespace
+}  // anonymous namespace
 
 NODE_MODULE(NODE_GYP_MODULE_NAME, Initialize)
diff --git a/test/addons/callback-scope/binding.cc b/test/addons/callback-scope/binding.cc
index 34d452bbb7c710..52ffe8e91f6dce 100644
--- a/test/addons/callback-scope/binding.cc
+++ b/test/addons/callback-scope/binding.cc
@@ -69,6 +69,6 @@ void Initialize(v8::Local<v8::Object> exports) {
   NODE_SET_METHOD(exports, "testResolveAsync", TestResolveAsync);
 }
 
-}  // namespace
+}  // anonymous namespace
 
 NODE_MODULE(NODE_GYP_MODULE_NAME, Initialize)
diff --git a/test/addons/make-callback-recurse/binding.cc b/test/addons/make-callback-recurse/binding.cc
index c42166c7455277..d1f9070f8a2a79 100644
--- a/test/addons/make-callback-recurse/binding.cc
+++ b/test/addons/make-callback-recurse/binding.cc
@@ -26,6 +26,6 @@ void Initialize(Local<Object> exports) {
   NODE_SET_METHOD(exports, "makeCallback", MakeCallback);
 }
 
-}  // namespace
+}  // anonymous namespace
 
 NODE_MODULE(NODE_GYP_MODULE_NAME, Initialize)
diff --git a/test/addons/make-callback/binding.cc b/test/addons/make-callback/binding.cc
index a5dfe46d773e82..13daf21cff07ae 100644
--- a/test/addons/make-callback/binding.cc
+++ b/test/addons/make-callback/binding.cc
@@ -34,6 +34,6 @@ void Initialize(v8::Local<v8::Object> exports) {
   NODE_SET_METHOD(exports, "makeCallback", MakeCallback);
 }
 
-}  // namespace
+}  // anonymous namespace
 
 NODE_MODULE(NODE_GYP_MODULE_NAME, Initialize)
diff --git a/test/cctest/test_inspector_socket_server.cc b/test/cctest/test_inspector_socket_server.cc
index 49a3ca9f95857d..9023ad43c1c75c 100644
--- a/test/cctest/test_inspector_socket_server.cc
+++ b/test/cctest/test_inspector_socket_server.cc
@@ -398,7 +398,7 @@ static const std::string WsHandshakeRequest(const std::string& target_id) {
          "Sec-WebSocket-Key: aaa==\r\n"
          "Sec-WebSocket-Version: 13\r\n\r\n";
 }
-}  // namespace
+}  // anonymous namespace
 
 
 TEST_F(InspectorSocketServerTest, InspectorSessions) {