diff --git a/Modules/FindPythonLibs.cmake b/Modules/FindPythonLibs.cmake
index 0a9a990..6a13d22 100644
--- a/Modules/FindPythonLibs.cmake
+++ b/Modules/FindPythonLibs.cmake
@@ -79,6 +79,8 @@ unset(_PYTHON1_VERSIONS)
 unset(_PYTHON2_VERSIONS)
 unset(_PYTHON3_VERSIONS)
 
+EXECUTE_PROCESS(COMMAND python -c "import sys; sys.stdout.write('.'.join([str(x) for x in sys.version_info[:2]]))"
+       OUTPUT_VARIABLE _Python_VERSIONS)
 foreach(_CURRENT_VERSION ${_Python_VERSIONS})
   string(REPLACE "." "" _CURRENT_VERSION_NO_DOTS ${_CURRENT_VERSION})
   if(WIN32)