diff --git a/tests/regressiontests/views/tests/generic/date_based.py b/tests/regressiontests/views/tests/generic/date_based.py
index e0bae28ed0..2ca1bfd090 100644
--- a/tests/regressiontests/views/tests/generic/date_based.py
+++ b/tests/regressiontests/views/tests/generic/date_based.py
@@ -100,7 +100,7 @@ class MonthArchiveTest(TestCase):
 
         now = datetime.now()
         prev_month = now.date().replace(day=1)
-        if prev_month.month == 11:
+        if prev_month.month == 1:
             prev_month = prev_month.replace(year=prev_month.year-1, month=12)
         else:
             prev_month = prev_month.replace(month=prev_month.month-1)
@@ -121,4 +121,4 @@ class DayArchiveTests(TestCase):
         article = Article.objects.create(title="example", author=author, date_created=datetime(2004, 1, 21, 0, 0, 1))
         response = self.client.get('/views/date_based/archive_day/2004/1/21/')
         self.assertEqual(response.status_code, 200)
-        self.assertEqual(response.context['object_list'][0], article)
\ No newline at end of file
+        self.assertEqual(response.context['object_list'][0], article)