diff --git a/Lib/test/test_importlib/test_util.py b/Lib/test/test_importlib/test_util.py
index fe5e7b31d9c32b..a09286806e5152 100644
--- a/Lib/test/test_importlib/test_util.py
+++ b/Lib/test/test_importlib/test_util.py
@@ -577,7 +577,7 @@ def test_cache_from_source_respects_pycache_prefix_relative(self):
         with util.temporary_pycache_prefix(pycache_prefix):
             self.assertEqual(
                 self.util.cache_from_source(path, optimization=''),
-                expect)
+                os.path.normpath(expect))
 
     @unittest.skipIf(sys.implementation.cache_tag is None,
                      'requires sys.implementation.cache_tag to not be None')