diff --git a/plugins/clean/tool_task.py b/plugins/clean/tool_task.py
index cc762f7c9..4fedd9d7e 100644
--- a/plugins/clean/tool_task.py
+++ b/plugins/clean/tool_task.py
@@ -113,7 +113,7 @@ def removeBgTask():
             "id=?", (cfg["task_id"],)).find()
         if res and res["id"] == cfg["task_id"]:
             data = MwCrontab.instance().delete(cfg["task_id"])
-            if data[0]:
+            if data["status"]:
                 cfg["task_id"] = -1
                 mw.writeFile(getTaskConf(), json.dumps(cfg))
                 return True