diff --git a/modules/cudalegacy/include/opencv2/cudalegacy/private.hpp b/modules/cudalegacy/include/opencv2/cudalegacy/private.hpp
index fd3286c17..945a6bc4f 100644
--- a/modules/cudalegacy/include/opencv2/cudalegacy/private.hpp
+++ b/modules/cudalegacy/include/opencv2/cudalegacy/private.hpp
@@ -91,6 +91,6 @@ namespace cv { namespace cuda
 
 //! @endcond
 
-#endif HAVE_CUDA
+#endif // HAVE_CUDA
 
 #endif // OPENCV_CORE_CUDALEGACY_PRIVATE_HPP