diff --git a/lib_planes/forms.lua b/lib_planes/forms.lua
index 56f1b28..6f255b9 100644
--- a/lib_planes/forms.lua
+++ b/lib_planes/forms.lua
@@ -382,10 +382,10 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 		    if fields.turn_auto_pilot_on then
                 if ent._autopilot == true then
                     ent._autopilot = false
-                    core.chat_send_player(self.driver_name,S(" >>> Autopilot deactivated"))
+                    core.chat_send_player(ent.driver_name,S(" >>> Autopilot deactivated"))
                 else
                     ent._autopilot = true
-                    core.chat_send_player(self.driver_name,core.colorize('#00ff00', S(" >>> Autopilot activated")))
+                    core.chat_send_player(ent.driver_name,core.colorize('#00ff00', S(" >>> Autopilot activated")))
                 end
 		    end
             if fields.manual then