diff --git a/python/mach/mach/main.py b/python/mach/mach/main.py
index 9b459aa53c0..db518d8a151 100644
--- a/python/mach/mach/main.py
+++ b/python/mach/mach/main.py
@@ -10,7 +10,7 @@ from __future__ import absolute_import, print_function, unicode_literals
 import argparse
 import codecs
 import errno
-import importlib
+import importlib.util
 import logging
 import os
 import sys