diff --git a/mace/core/runtime/opencl/opencl_runtime.cc b/mace/core/runtime/opencl/opencl_runtime.cc
index b6d51f9a2b363cdfee20caaba9986a06b83afa77..fda211d4860a32fc3bec56152b06eefb6b3a386f 100644
--- a/mace/core/runtime/opencl/opencl_runtime.cc
+++ b/mace/core/runtime/opencl/opencl_runtime.cc
@@ -155,10 +155,10 @@ const std::string OpenCLErrorToString(cl_int error) {
 }
 
 namespace {
-void CLCallback(const char *buffer,
-                size_t length,
-                size_t final,
-                void *user_data) {
+void OpenCLPrintfCallback(const char *buffer,
+                          size_t length,
+                          size_t final,
+                          void *user_data) {
   fwrite(buffer, 1, length, stdout);
 }
 }
@@ -311,7 +311,7 @@ OpenCLRuntime::OpenCLRuntime(GPUPerfHint gpu_perf_hint,
     if (is_profiling_enabled_ && gpu_type_ == GPUType::MALI) {
       std::vector<cl_context_properties> context_properties = {
           CL_CONTEXT_PLATFORM, (cl_context_properties)default_platform(),
-          CL_PRINTF_CALLBACK_ARM, (cl_context_properties)CLCallback,
+          CL_PRINTF_CALLBACK_ARM, (cl_context_properties)OpenCLPrintfCallback,
           CL_PRINTF_BUFFERSIZE_ARM, 0x1000, 0
       };
       context_ = std::shared_ptr<cl::Context>(