diff --git a/Lib/test/test_zipfile.py b/Lib/test/test_zipfile.py
index adc0dc179a5..082b918953c 100644
--- a/Lib/test/test_zipfile.py
+++ b/Lib/test/test_zipfile.py
@@ -316,6 +316,7 @@ class TestsWithSourceFile(unittest.TestCase):
                 correctfile = os.path.join(os.getcwd(), fpath[1:])
             else:
                 correctfile = os.path.join(os.getcwd(), fpath)
+            correctfile = os.path.normpath(correctfile)
 
             self.assertEqual(writtenfile, correctfile)