diff --git a/cmake/OpenCVDetectCXXCompiler.cmake b/cmake/OpenCVDetectCXXCompiler.cmake
index 674a6e4a82..a4adedce1c 100644
--- a/cmake/OpenCVDetectCXXCompiler.cmake
+++ b/cmake/OpenCVDetectCXXCompiler.cmake
@@ -147,7 +147,7 @@ elseif(MINGW)
   execute_process(COMMAND ${CMAKE_CXX_COMPILER} -dumpmachine
                   OUTPUT_VARIABLE OPENCV_GCC_TARGET_MACHINE
                   OUTPUT_STRIP_TRAILING_WHITESPACE)
-  if(CMAKE_OPENCV_GCC_TARGET_MACHINE MATCHES "64")
+  if(CMAKE_OPENCV_GCC_TARGET_MACHINE MATCHES "mingw64")
     set(MINGW64 1)
     set(OpenCV_ARCH x64)
   else()