diff --git a/Lib/test/datetimetester.py b/Lib/test/datetimetester.py
index 266ef696759..a4180ae69c8 100644
--- a/Lib/test/datetimetester.py
+++ b/Lib/test/datetimetester.py
@@ -1747,7 +1747,7 @@ def test_timestamp_naive(self):
         # Missing hour may produce platform-dependent result
         t = self.theclass(2012, 3, 11, 2, 30)
         self.assertIn(self.theclass.fromtimestamp(t.timestamp()),
-                      [t, t + timedelta(hours=1)])
+                      [t - timedelta(hours=1), t + timedelta(hours=1)])
         # Ambiguous hour defaults to DST
         t = self.theclass(2012, 11, 4, 1, 30)
         self.assertEqual(self.theclass.fromtimestamp(t.timestamp()), t)