diff --git a/Tests/RunCMake/UseSWIG/SetPOSTFIX.cmake b/Tests/RunCMake/UseSWIG/SetPOSTFIX.cmake
index 16955e1fb9..f627aa5e7c 100644
--- a/Tests/RunCMake/UseSWIG/SetPOSTFIX.cmake
+++ b/Tests/RunCMake/UseSWIG/SetPOSTFIX.cmake
@@ -25,4 +25,4 @@ endif()
 
 add_test (NAME SetPOSTFIX
   COMMAND "${CMAKE_COMMAND}" -E env "PYTHONPATH=${CMAKE_CURRENT_BINARY_DIR}${PS}$<TARGET_FILE_DIR:example>"
-  "${Python_EXECUTABLE}" "${CMAKE_CURRENT_SOURCE_DIR}/runme.py")
+  "${Python_INTERPRETER}" "${CMAKE_CURRENT_SOURCE_DIR}/runme.py")