diff --git a/mods/MAPGEN/mcl_structures/desert_temple.lua b/mods/MAPGEN/mcl_structures/desert_temple.lua
index e4d4c10dc..fbaa1fe20 100644
--- a/mods/MAPGEN/mcl_structures/desert_temple.lua
+++ b/mods/MAPGEN/mcl_structures/desert_temple.lua
@@ -146,7 +146,6 @@ mcl_structures.register_structure({
 	on_finished_chunk = function(minp, maxp, seed, vm_context, pos_list)
 		local a = seed % 14
 		local b = (math.floor(seed / 39) + 4) % 12
-		minetest.chat_send_all("seed=" .. tostring(seed) .. ", a=" .. tostring(a) .. ", b=" ..tostring(b))
 		if a ~= b then return end
 		mcl_structures.perlin_noise = mcl_structures.perlin_noise or minetest.get_perlin(329, 3, 0.6, 100)
 		local current_noise_level = mcl_structures.perlin_noise:get_3d(minp)
diff --git a/mods/MAPGEN/mcl_structures/init.lua b/mods/MAPGEN/mcl_structures/init.lua
index 65e538024..4d2eacf66 100644
--- a/mods/MAPGEN/mcl_structures/init.lua
+++ b/mods/MAPGEN/mcl_structures/init.lua
@@ -72,7 +72,7 @@ function mcl_structures.register_structure(def)
 	local decoration_id
 	if decoration then
 		minetest.register_node(':' .. name, {
-			-- drawtype            = "airlike",
+			drawtype            = "airlike",
 			sunlight_propagates = true,
 			pointable           = false,
 			walkable            = false,
diff --git a/mods/MAPGEN/mcl_structures/jungle_temple.lua b/mods/MAPGEN/mcl_structures/jungle_temple.lua
index 02b5f2361..438eb1e7a 100644
--- a/mods/MAPGEN/mcl_structures/jungle_temple.lua
+++ b/mods/MAPGEN/mcl_structures/jungle_temple.lua
@@ -158,7 +158,6 @@ mcl_structures.register_structure({
 	on_finished_chunk = function(minp, maxp, seed, vm_context, pos_list)
 		local a = seed % 17
 		local b = (math.ceil(seed / 123) - 4) % 17
-		minetest.chat_send_all("seed=" .. tostring(seed) .. ", a=" .. tostring(a) .. ", b=" ..tostring(b))
 		if a ~= b then return end
 		mcl_structures.perlin_noise = mcl_structures.perlin_noise or minetest.get_perlin(329, 3, 0.6, 100)
 		local current_noise_level = mcl_structures.perlin_noise:get_3d(maxp)
diff --git a/mods/MAPGEN/mcl_structures/noise_indicator.lua b/mods/MAPGEN/mcl_structures/noise_indicator.lua
index 19007ed16..f48e4d9b2 100644
--- a/mods/MAPGEN/mcl_structures/noise_indicator.lua
+++ b/mods/MAPGEN/mcl_structures/noise_indicator.lua
@@ -1,3 +1,6 @@
+local step = 1
+local chunk_borders = true
+
 local levels = {
 	[-9] = "black",
 	[-8] = "brown",
@@ -27,8 +30,8 @@ mcl_mapgen.register_mapgen(function(minp, maxp, seed, vm_context)
 	mcl_structures.perlin_noise = mcl_structures.perlin_noise or minetest.get_perlin(329, 3, 0.6, 100)
 	local perlin_noise = mcl_structures.perlin_noise
 	local y0 = minp.y
-	for x0 = minp.x, maxp.x do
-		for z0 = minp.z, maxp.z do
+	for x0 = minp.x, maxp.x, step do
+		for z0 = minp.z, maxp.z, step do
 			local current_noise_level = perlin_noise:get_3d({x=x0, y=y0, z=z0})
 			local amount
 			if current_noise_level < 0 then
@@ -40,4 +43,16 @@ mcl_mapgen.register_mapgen(function(minp, maxp, seed, vm_context)
 			minetest.set_node({x=x0, y=y0, z=z0}, {name = "mcl_core:glass_"..levels[amount]})
 		end
 	end
+	if chunk_borders then
+		for x0 = minp.x, maxp.x, step do
+			for y0 = minp.y, maxp.y, step do
+				minetest.set_node({x=x0, y=y0, z=maxp.z}, {name = "mcl_core:glass"})
+			end
+		end
+		for z0 = minp.z, maxp.z, step do
+			for y0 = minp.y, maxp.y, step do
+				minetest.set_node({x=maxp.x, y=y0, z=z0}, {name = "mcl_core:glass"})
+			end
+		end
+	end
 end, -1)
diff --git a/mods/MAPGEN/mcl_structures/structures.lua b/mods/MAPGEN/mcl_structures/structures.lua
index 5bbc18774..5b7a65a7d 100644
--- a/mods/MAPGEN/mcl_structures/structures.lua
+++ b/mods/MAPGEN/mcl_structures/structures.lua
@@ -6,5 +6,5 @@ if not mcl_mapgen.singlenode then
 	dofile(modpath .. "/jungle_temple.lua")
 	dofile(modpath .. "/stronghold.lua")
 
-	dofile(modpath .. "/noise_indicator.lua")
+	-- dofile(modpath .. "/noise_indicator.lua")
 end