diff --git a/samples/gpu/CMakeLists.txt b/samples/gpu/CMakeLists.txt
index 3aa3635408..584fe2a705 100644
--- a/samples/gpu/CMakeLists.txt
+++ b/samples/gpu/CMakeLists.txt
@@ -17,7 +17,7 @@ if(BUILD_EXAMPLES AND OCV_DEPENDENCIES_FOUND)
     )
 
   if(HAVE_CUDA)
-    include_directories(${CUDA_INCLUDE_DIRS} ${OpenCV_SOURCE_DIR}/modules/gpu/src/nvidia ${OpenCV_SOURCE_DIR}/modules/gpu/src/nvidia/core)
+    include_directories(${CUDA_INCLUDE_DIRS})
   endif()
 
   if(CMAKE_COMPILER_IS_GNUCXX)
diff --git a/samples/gpu/cascadeclassifier_nvidia_api.cpp b/samples/gpu/cascadeclassifier_nvidia_api.cpp
index 528cf0bbd8..41df5d34a3 100644
--- a/samples/gpu/cascadeclassifier_nvidia_api.cpp
+++ b/samples/gpu/cascadeclassifier_nvidia_api.cpp
@@ -7,6 +7,7 @@
 #include <iomanip>
 #include <cstdio>
 #include "opencv2/gpu/gpu.hpp"
+#include "opencv2/gpu/highgui.hpp"
 
 #ifdef HAVE_CUDA
 #include "NCVHaarObjectDetection.hpp"