diff --git a/kfet/tests/test_views.py b/kfet/tests/test_views.py
index ecd7131e..7d395e7e 100644
--- a/kfet/tests/test_views.py
+++ b/kfet/tests/test_views.py
@@ -654,7 +654,9 @@ class AccountStatOperationListViewTests(ViewTestCaseMixin, TestCase):
                         "scale-name": ["month"],
                         "scale-last": ["True"],
                         "scale-begin": [
-                            self.accounts["user1"].created_at.isoformat(" ")
+                            self.accounts["user1"]
+                            .created_at.replace(tzinfo=None)
+                            .isoformat(" ")
                         ],
                     },
                 },