diff --git a/modules/gpu/CMakeLists.txt b/modules/gpu/CMakeLists.txt
index f241536fb..645949787 100644
--- a/modules/gpu/CMakeLists.txt
+++ b/modules/gpu/CMakeLists.txt
@@ -29,7 +29,7 @@ if (HAVE_CUDA)
 
   source_group("Src\\NVidia" FILES ${ncv_files})
   ocv_include_directories("src/nvidia" "src/nvidia/core" "src/nvidia/NPP_staging" ${CUDA_INCLUDE_DIRS})
-  ocv_warnings_disable(CMAKE_CXX_FLAGS -Wundef /wd4211 /wd4201 /wd4100 /wd4505 /wd4408)
+  ocv_warnings_disable(CMAKE_CXX_FLAGS -Wundef -Wmissing-declarations /wd4211 /wd4201 /wd4100 /wd4505 /wd4408)
 
   #set (CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} "-keep")
   #set (CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} "-Xcompiler;/EHsc-;")