diff --git a/sio_model.py b/sio_model.py
index db3a909..2c15cc1 100644
--- a/sio_model.py
+++ b/sio_model.py
@@ -110,6 +110,8 @@ class SioDecorator:
             self.cmds[f'/{cmd}'] = func
 
     async def route2cmd_and_run(self):
+        if self._cmd == '':
+            return None
         func = self.cmds.get(self._cmd[0])
         if func:
             sender_id = self.data['message']['senderId']