--- a/cmake/OpenCVDetectPython.cmake	2018-05-31 09:14:42.998873104 +0200
+++ b/cmake/OpenCVDetectPython.cmake	2018-05-31 09:26:08.444914001 +0200
@@ -140,8 +140,8 @@
         else() #debian based assumed, install to the dist-packages.
           set(_packages_path "python${_version_major_minor}/dist-packages")
         endif()
-        if(EXISTS "${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}/${${packages_path}}")
-          set(_packages_path "lib${LIB_SUFFIX}/${_packages_path}")
+        if(EXISTS "${CMAKE_INSTALL_PREFIX}/lib${LIBPY_SUFFIX}/${${packages_path}}")
+          set(_packages_path "lib${LIBPY_SUFFIX}/${_packages_path}")
         else()
           set(_packages_path "lib/${_packages_path}")
         endif()