diff --git a/init.lua b/init.lua
index e67f35a..9b0555d 100644
--- a/init.lua
+++ b/init.lua
@@ -689,7 +689,11 @@ minetest.register_node("protector:display_node", {
 })
 
 
-dofile(MP .. "/doors_chest.lua")
+-- only add protected doors and chest if running default minetest
+if minetest.registered_items["default:steel_ingot"] then
+	dofile(MP .. "/doors_chest.lua")
+end
+
 dofile(MP .. "/pvp.lua")
 dofile(MP .. "/admin.lua")
 dofile(MP .. "/tool.lua")