diff --git a/apps/enm/services.py b/apps/enm/services.py
index ec487316..a315858b 100644
--- a/apps/enm/services.py
+++ b/apps/enm/services.py
@@ -148,7 +148,7 @@ def king_sync(projectName: str):
                 "third_info": item
             })
 
-def cache_mpoints(mpointId: str|None = None):
+def cache_mpoints(mpointId: str = ''):
     """
     缓存所有可用的测点
     """