diff --git a/tensorflow/cc/training/coordinator.cc b/tensorflow/cc/training/coordinator.cc
index fe45931f7f8..4511d043206 100644
--- a/tensorflow/cc/training/coordinator.cc
+++ b/tensorflow/cc/training/coordinator.cc
@@ -126,4 +126,4 @@ Status Coordinator::ExportCostGraph(CostGraphDef* cost_graph) const {
   return Status::OK();
 }
 
-}  // namespace
+}  // namespace tensorflow
diff --git a/tensorflow/core/common_runtime/memory_types_test.cc b/tensorflow/core/common_runtime/memory_types_test.cc
index 06d7daea9cd..088ba0cb453 100644
--- a/tensorflow/core/common_runtime/memory_types_test.cc
+++ b/tensorflow/core/common_runtime/memory_types_test.cc
@@ -77,4 +77,4 @@ TEST(MemoryTypeChecker, MemoryTypeForOutput) {
   delete g;
 }
 
-}  // namespace
+}  // namespace tensorflow
diff --git a/tensorflow/core/kernels/hexagon/hexagon_ops_definitions.cc b/tensorflow/core/kernels/hexagon/hexagon_ops_definitions.cc
index 67f26b6db97..07f5f87c122 100644
--- a/tensorflow/core/kernels/hexagon/hexagon_ops_definitions.cc
+++ b/tensorflow/core/kernels/hexagon/hexagon_ops_definitions.cc
@@ -398,4 +398,4 @@ GraphTransferInfo::Destination HexagonOpsDefinitions::GetTransferDestination()
     const {
   return GraphTransferInfo::HEXAGON;
 }
-};
+}  // namespace tensorflow
diff --git a/tensorflow/core/lib/io/table_test.cc b/tensorflow/core/lib/io/table_test.cc
index 89c8a9b7133..31100906e51 100644
--- a/tensorflow/core/lib/io/table_test.cc
+++ b/tensorflow/core/lib/io/table_test.cc
@@ -74,7 +74,7 @@ static StringPiece CompressibleString(random::SimplePhilox* rnd,
   dst->resize(len);
   return StringPiece(*dst);
 }
-}
+}  // namespace test
 
 static void Increment(string* key) { key->push_back('\0'); }