diff --git a/init.lua b/init.lua
index fb9cae4..b91a425 100644
--- a/init.lua
+++ b/init.lua
@@ -57,6 +57,7 @@ techage.ore_rarity = tonumber(minetest.settings:get("techage_ore_rarity")) or 1
 techage.modified_recipes_enabled = minetest.settings:get_bool("techage_modified_recipes_enabled") ~= false
 techage.collider_min_depth = tonumber(minetest.settings:get("techage_collider_min_depth")) or -28
 techage.recipe_checker_enabled = minetest.settings:get_bool("techage_recipe_checker_enabled") ~= false
+techage.stair_aliases_enabled = minetest.settings:get_bool("techage_stair_aliases_enabled") ~= false
 
 -- allow to load marshal and sqlite3
 techage.IE = minetest.request_insecure_environment()
diff --git a/items/moreblocks.lua b/items/moreblocks.lua
index f0ebddd..14dea14 100644
--- a/items/moreblocks.lua
+++ b/items/moreblocks.lua
@@ -68,9 +68,11 @@ if(minetest.get_modpath("moreblocks")) then
 			ndef.sunlight_propagates = true
 			ndef.groups.not_in_creative_inventory = 1
 			stairsplus:register_all("techage", subname, name, ndef)
-			register_alias(subname)
+			if techage.stair_aliases_enabled then
+				register_alias(subname)
+			end
 		end
-    end
+	end
 else
     for _,name in ipairs(NodeNames) do
 		local ndef = minetest.registered_nodes[name]
@@ -86,7 +88,9 @@ else
 				ndef.sound,
 				false
 			)
-			register_alias(subname)
+			if techage.stair_aliases_enabled then
+				register_alias(subname)
+			end
 		end
 	end
 end
diff --git a/settingtypes.txt b/settingtypes.txt
index 088d48e..2223416 100644
--- a/settingtypes.txt
+++ b/settingtypes.txt
@@ -40,4 +40,7 @@ techage_collider_min_depth (Min. depth to build a TA4 Collider) int -30
 techage_expoint_rate_in_min (average waiting time for one expoint) int 60
 
 # For testing purpuses only
-techage_recipe_checker_enabled (test techage recipes) bool false
\ No newline at end of file
+techage_recipe_checker_enabled (test techage recipes) bool false
+
+# Enables stair aliases (to prevent unknown nodes)
+techage_stair_aliases_enabled (Enable stair aliases) bool false
\ No newline at end of file