diff --git a/init.lua b/init.lua
index 914b34d..6de05c8 100644
--- a/init.lua
+++ b/init.lua
@@ -197,12 +197,11 @@ minetest.register_craft({
 })
 
 --Redefinition
-minetest.register_abm({
+minetest.register_lbm({
+	name = "arrow_signs:replace_old",
 	nodenames = {"arrow_signs:wall_right", "arrow_signs:wall_left", "arrow_signs:wall_up", "arrow_signs:wall_down",
 		"more_signs:wall_right","more_signs:wall_left","more_signs:wall_up"	,"more_signs:wall_down"
 	},
-	interval = 1,
-	chance = 1,
 	action = function(pos, node)
 		local convert_facedir={
 			["arrow_signs:wall_right"]	=	{6,4,5,11,16,14},
diff --git a/shared_locked.lua b/shared_locked.lua
index d1c8c9e..5dd5856 100644
--- a/shared_locked.lua
+++ b/shared_locked.lua
@@ -85,10 +85,9 @@ minetest.register_craft({
 })
 
 --Redefinition
-minetest.register_abm({
+minetest.register_lbm({
+	name = "arrow_signs:replace_old_shared_locked",
 	nodenames = {"arrow_signs:shared_locked_right", "'arrow_signs:shared_locked_left", "arrow_signs:shared_locked_up", "arrow_signs:shared_locked_down"},
-	interval = 1,
-	chance = 1,
 	action = function(pos, node)
 		local convert_facedir={
 			["arrow_signs:shared_locked_right"]={6,4,5,11,16,14},