diff --git a/advtrains_luaautomation/atc_rail.lua b/advtrains_luaautomation/atc_rail.lua
index 0bb9871..ce9e0fa 100644
--- a/advtrains_luaautomation/atc_rail.lua
+++ b/advtrains_luaautomation/atc_rail.lua
@@ -74,7 +74,7 @@ function r.fire_event(pos, evtdata)
 			if not train_id then return false end
 			train.autocouple = nil
 		end,
-		set_autcouple = function ()
+		set_autocouple = function ()
 			if not train_id then return false end
 			train.autocouple = true			
 		end,