diff --git a/pelican/tests/test_utils.py b/pelican/tests/test_utils.py
index 10816199..5fbd066d 100644
--- a/pelican/tests/test_utils.py
+++ b/pelican/tests/test_utils.py
@@ -513,6 +513,9 @@ class TestUtils(LoggedTestCase):
         d = utils.SafeDatetime(2012, 8, 9)
         self.assertEqual(utils.strftime(d, '%-d/%-m/%y'), '9/8/12')
 
+        d = utils.SafeDatetime(2021, 1, 8)
+        self.assertEqual(utils.strftime(d, '%G - %-V - %u'), '2021 - 1 - 5')
+
     # test the output of utils.strftime in a different locale
     # Turkish locale
     @unittest.skipUnless(locale_available('tr_TR.UTF-8') or
diff --git a/pelican/utils.py b/pelican/utils.py
index 7b369b08..b69cbf95 100644
--- a/pelican/utils.py
+++ b/pelican/utils.py
@@ -99,6 +99,7 @@ class SafeDatetime(datetime.datetime):
         else:
             return super().strftime(fmt)
 
+
 class DateFormatter:
     '''A date formatter object used as a jinja filter