diff --git a/api/src/dooris_api/ccujack.py b/api/src/dooris_api/ccujack.py
index 1a6120a..8add7ef 100644
--- a/api/src/dooris_api/ccujack.py
+++ b/api/src/dooris_api/ccujack.py
@@ -93,7 +93,7 @@ class CCUJackClient:
         await self.mqtt.connect()
         await self.find_locks()
 
-        self.task_find_locks = asyncio.get_running_loop().create_task(
+        self.task_cron= asyncio.get_running_loop().create_task(
             self.cron(), name="ccujack-cron"
         )
         self.task_process_messages = asyncio.get_running_loop().create_task(
@@ -104,8 +104,8 @@ class CCUJackClient:
         await asyncio.gather(self.mqtt.disconnect(), self.http.close())
         self.task_process_messages.cancel()
         self.task_process_messages = None
-        self.task.cron.cancel()
-        self.task.cron = None
+        self.task_cron.cancel()
+        self.task_cron = None
 
     async def find_locks(self):
         logger.debug("Inspecting lock devices present in CCUJack")