diff --git a/andes/routines/tds.py b/andes/routines/tds.py
index a2540111e..2c937dd7a 100644
--- a/andes/routines/tds.py
+++ b/andes/routines/tds.py
@@ -817,7 +817,7 @@ def do_switch(self):
 
         # check system connectivity after a switching
         if ret is True and self.config.check_conn == 1:
-            system.connectivity(info=False, routine='tds')
+            system.connectivity(info=False)
 
         return ret