diff --git a/src/tests/api/test_permissions.py b/src/tests/api/test_permissions.py
index edd3739b6b..26c70d1ccc 100644
--- a/src/tests/api/test_permissions.py
+++ b/src/tests/api/test_permissions.py
@@ -38,6 +38,7 @@ event_permission_urls = [
     ('post', 'can_change_orders', 'orders/ABC12/mark_pending/', 404),
     ('post', 'can_change_orders', 'orders/ABC12/mark_expired/', 404),
     ('post', 'can_change_orders', 'orders/ABC12/mark_canceled/', 404),
+    ('post', 'can_change_orders', 'orders/ABC12/extend/', 400),
 ]