diff --git a/django/contrib/sessions/tests.py b/django/contrib/sessions/tests.py
index 9e23b5131f..afcba2c27f 100644
--- a/django/contrib/sessions/tests.py
+++ b/django/contrib/sessions/tests.py
@@ -379,8 +379,9 @@ class SessionMiddlewareTests(unittest.TestCase):
         if 'httponly' in settings.SESSION_COOKIE_NAME:
             self.assertFalse(
                response.cookies[settings.SESSION_COOKIE_NAME]['httponly'])
-            self.assertNotIn('httponly', 
-               str(response.cookies[settings.SESSION_COOKIE_NAME]['httponly']))
+
+        self.assertNotIn('httponly', 
+                         str(response.cookies[settings.SESSION_COOKIE_NAME]))
 
 class CookieSessionTests(SessionTestsMixin, TestCase):