diff --git a/Lib/os.py b/Lib/os.py
index e723b075ef3..5c8f3dcd1b8 100644
--- a/Lib/os.py
+++ b/Lib/os.py
@@ -26,6 +26,7 @@ _osindex = {
 # For freeze.py script:
 if 0:
 	import posix
+	import posixpath
 
 import sys
 for name in _osindex.keys():