diff --git a/samples/gpu/video_writer.cpp b/samples/gpu/video_writer.cpp
index 80d2cfc47b..6b9cca3dfa 100644
--- a/samples/gpu/video_writer.cpp
+++ b/samples/gpu/video_writer.cpp
@@ -11,6 +11,7 @@
 #include "opencv2/cudacodec.hpp"
 #include "opencv2/highgui.hpp"
 
+using namespace cv;
 int main(int argc, const char* argv[])
 {
     if (argc != 2)