diff --git a/app/tests/test_external_auth.py b/app/tests/test_external_auth.py
index 2928bebd7..1056bf17b 100644
--- a/app/tests/test_external_auth.py
+++ b/app/tests/test_external_auth.py
@@ -46,3 +46,6 @@ def test_ext_auth(self):
             # Re-test login
             ok = client.login(username='extuser1', password='test1234')
             self.assertTrue(ok)
+
+            # Check that the user has been added to the default group
+            self.assertTrue(user.groups.filter(name='Default').exists())