diff --git a/script/local.py b/script/local.py
index 0d17488..b91b18c 100644
--- a/script/local.py
+++ b/script/local.py
@@ -35,7 +35,7 @@ class RobotModbus(DeviceBase):
          DeviceBase.__init__(self, name)
          robot_req.write(0)
 
-    def execute(self, system, command, *argv):
+    def execute(self, command, *argv):
         #print "Done"
         if robot_req.read() != 0:
             raise Exception("Ongoing command")