diff --git a/danding_bot/plugins/group_horse_racing/test_commands.py b/danding_bot/plugins/group_horse_racing/test_commands.py
index 76ef0de..deb6d18 100644
--- a/danding_bot/plugins/group_horse_racing/test_commands.py
+++ b/danding_bot/plugins/group_horse_racing/test_commands.py
@@ -224,6 +224,7 @@ async def handle_test_simulate_race(bot: Bot, event: Event):
     fake_room_store = _InMemoryRoomStore()
     fake_points_service = _InMemoryPointsService()
     fake_message_service = _NoopMessageService()
+    fake_bot = _FakeBot()
 
     start_task: asyncio.Task | None = None
     room = None