diff --git a/lms/djangoapps/courseware/tests/test_date_summary.py b/lms/djangoapps/courseware/tests/test_date_summary.py
index 068f6ac9df..ecb5619153 100644
--- a/lms/djangoapps/courseware/tests/test_date_summary.py
+++ b/lms/djangoapps/courseware/tests/test_date_summary.py
@@ -61,7 +61,7 @@ class CourseDateSummaryTest(SharedModuleStoreTestCase):
         self.client.login(username=user.username, password=TEST_PASSWORD)
         url = reverse('info', args=(course.id,))
         response = self.client.get(url)
-        self.assertNotIn('date-summary', response.content)
+        self.assertNotIn(b'date-summary', response.content)
 
     def test_course_home_logged_out(self):
         course = create_course_run()