diff --git a/src/backend/tests/unit/components/flow_controls/test_loop.py b/src/backend/tests/unit/components/flow_controls/test_loop.py
index 871fa30017..451d29acb5 100644
--- a/src/backend/tests/unit/components/flow_controls/test_loop.py
+++ b/src/backend/tests/unit/components/flow_controls/test_loop.py
@@ -389,7 +389,7 @@ class TestLoopComponentSubgraphExecution:
         event_manager_received = []
 
         # Create an async generator that yields mock results
-        async def mock_async_start(event_manager=None):
+        async def mock_async_start(event_manager=None, **_kwargs):
             event_manager_received.append(event_manager)
             yield MagicMock(valid=True, result_dict={"outputs": {}})