diff --git a/tests/test_mix_and_match_attack.py b/tests/test_mix_and_match_attack.py
index 7f284a82..0f58be06 100755
--- a/tests/test_mix_and_match_attack.py
+++ b/tests/test_mix_and_match_attack.py
@@ -248,7 +248,7 @@ def test_with_tuf(self):
         url_file = os.path.join(url_prefix, 'metadata', 'role1.json')
 
         # Verify that 'role1.json' is the culprit.
-        self.assertEqual(url_file, mirror_url)
+        self.assertEqual(url_file.replace('\\', '/'), mirror_url)
         self.assertTrue(isinstance(mirror_error,
                         securesystemslib.exceptions.BadVersionNumberError))