diff --git a/init.lua b/init.lua
index b2fd1cc..7b5a16d 100644
--- a/init.lua
+++ b/init.lua
@@ -1,5 +1,6 @@
 returnmirror = {}
-returnmirror.cost = 100
+returnmirror.cost_teleport = 100
+returnmirror.cost_set = 20
 
 if minetest.get_modpath("mana") ~= nil then
 	returnmirror.mana = true
@@ -7,6 +8,20 @@ else
 	returnmirror.mana = false
 end
 
+returnmirror.mana_check = function(player, cost)
+	local allowed
+	if returnmirror.mana then
+		if mana.subtract(player:get_player_name(), cost) then
+			allowed = true
+		else
+			allowed = false
+		end
+	else
+		allowed = true
+	end
+	return allowed
+end
+
 minetest.register_tool("returnmirror:returnmirror", {
 	description = "Mirror of Returning",
 	stack_max = 1,
@@ -17,17 +32,7 @@ minetest.register_tool("returnmirror:returnmirror", {
 		local dest_string = itemstack:get_metadata()
 		local dest = minetest.string_to_pos(dest_string)
 		if dest ~= nil then
-			local allowed
-			if returnmirror.mana then
-				if mana.subtract(user:get_player_name(), returnmirror.cost) then
-					allowed = true
-				else
-					allowed = false
-				end
-			else
-				allowed = true
-			end
-			if allowed then
+			if returnmirror.mana_check(user, returnmirror.cost_teleport) then
 				local src = user:getpos()
 				minetest.sound_play( {name="returnmirror_teleport", gain=1}, {pos=src, max_hear_distance=30})
 				minetest.add_particlespawner({
@@ -62,9 +67,11 @@ minetest.register_tool("returnmirror:returnmirror", {
 		end
 	end,
 	on_place = function(itemstack, placer, pointed_thing)
-		local pos = placer:getpos()
-		itemstack:set_metadata(minetest.pos_to_string(pos))
-		minetest.sound_play( {name="returnmirror_set", gain=1}, {pos=pos, max_hear_distance=12})
-		return itemstack
+		if returnmirror.mana_check(placer, returnmirror.cost_set) then
+			local pos = placer:getpos()
+			itemstack:set_metadata(minetest.pos_to_string(pos))
+			minetest.sound_play( {name="returnmirror_set", gain=1}, {pos=pos, max_hear_distance=12})
+			return itemstack
+		end
 	end
 })