diff --git a/tests/benchmark/CL/DirectConvolutionLayer.cpp b/tests/benchmark/CL/DirectConvolutionLayer.cpp
index 2430a4e..27994b4 100644
--- a/tests/benchmark/CL/DirectConvolutionLayer.cpp
+++ b/tests/benchmark/CL/DirectConvolutionLayer.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017 ARM Limited.
+ * Copyright (c) 2017-2018 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -42,6 +42,8 @@
 {
 namespace test
 {
+namespace benchmark
+{
 namespace
 {
 const auto data_types = framework::dataset::make("DataType", { DataType::F16, DataType::F32 });
@@ -103,5 +105,6 @@
                                                             framework::dataset::make("Batches", { 1, 4, 8 })));
 TEST_SUITE_END()
 TEST_SUITE_END()
+} // namespace benchmark
 } // namespace test
 } // namespace arm_compute