diff --git a/tests/app/notifications/test_rest.py b/tests/app/notifications/test_rest.py
index d7507fabd..510068494 100644
--- a/tests/app/notifications/test_rest.py
+++ b/tests/app/notifications/test_rest.py
@@ -582,7 +582,7 @@ def test_should_reject_email_notification_with_bad_email(notify_api, sample_emai
             app.celery.tasks.send_email.apply_async.assert_not_called()
             assert response.status_code == 400
             assert data['result'] == 'error'
-            assert data['message']['to'][0] == 'Not a valid email address '
+            assert data['message']['to'][0] == 'Not a valid email address'
 
 
 def test_should_reject_email_notification_with_template_id_that_cant_be_found(