diff --git a/apps/ecm/service.py b/apps/ecm/service.py
index ecc44486..cadd8e12 100644
--- a/apps/ecm/service.py
+++ b/apps/ecm/service.py
@@ -280,7 +280,7 @@ def check_miss_lcard(ep: Employee, area: Area):
             blt_list = res['recordList']
             macs = []  # 所有该区域在线标签
             for i in blt_list:
-                macs.append(i['mac'])
+                macs.append(i['userId'])
             td = TDevice.objects.filter(type=TDevice.DEVICE_BLT, employee=ep).first()
             if td:
                 if td.code not in macs: