diff --git a/tests/seahub/wiki/test_models.py b/tests/seahub/wiki/test_models.py
index 17033a2e13..5c71a4ba88 100644
--- a/tests/seahub/wiki/test_models.py
+++ b/tests/seahub/wiki/test_models.py
@@ -22,4 +22,3 @@ class WikiManagerTest(BaseTestCase):
         wiki = Wiki.objects.add('new wiki', self.user.username)
 
         assert wiki is not None
-        assert wiki.created_at.replace(microsecond=0) <= dt(wiki.updated_at)