diff --git a/Modules/FindPython/Support.cmake b/Modules/FindPython/Support.cmake
index a462dd1050..0581145e1b 100644
--- a/Modules/FindPython/Support.cmake
+++ b/Modules/FindPython/Support.cmake
@@ -2224,7 +2224,7 @@ if ("Development" IN_LIST ${_PYTHON_PREFIX}_FIND_COMPONENTS
     _python_get_version (INCLUDE PREFIX _${_PYTHON_PREFIX}_INC_)
 
     # update versioning
-    if (_${_PYTHON_PREFIX}_INC_VERSION VERSION_EQUAL ${_${_PYTHON_PREFIX}_VERSION})
+    if (_${_PYTHON_PREFIX}_INC_VERSION VERSION_EQUAL _${_PYTHON_PREFIX}_VERSION)
       set (_${_PYTHON_PREFIX}_VERSION_PATCH ${_${_PYTHON_PREFIX}_INC_VERSION_PATCH})
     endif()
   endif()