diff --git a/modules/gpu/test/nvidia/main_nvidia.cpp b/modules/gpu/test/nvidia/main_nvidia.cpp
index 994737eee4..a6719aefa8 100644
--- a/modules/gpu/test/nvidia/main_nvidia.cpp
+++ b/modules/gpu/test/nvidia/main_nvidia.cpp
@@ -283,7 +283,7 @@ void generateHaarApplicationTests(NCVAutoTestLister &testLister, NCVTestSourcePr
     }
 }
 
-static void devNullOutput(const char *msg)
+static void devNullOutput(const std::string& msg)
 {
 
 }