diff --git a/Lib/distutils/tests/test_bdist_msi.py b/Lib/distutils/tests/test_bdist_msi.py
index 9cbfb0c5c4e..e5994610701 100644
--- a/Lib/distutils/tests/test_bdist_msi.py
+++ b/Lib/distutils/tests/test_bdist_msi.py
@@ -1,4 +1,5 @@
 """Tests for distutils.command.bdist_msi."""
+import os
 import sys
 import unittest
 from test.support import run_unittest