diff --git a/init.lua b/init.lua
index 62f16eb..a0b82bc 100644
--- a/init.lua
+++ b/init.lua
@@ -7,44 +7,50 @@ local DMAX = 20
 local AREA_SIZE = 80
 
 dofile(minetest.get_modpath(minetest.get_current_modname()).."/nodes.lua")
-c_air = minetest.get_content_id("air")
-c_ignore = minetest.get_content_id("ignore")
-c_water = minetest.get_content_id("default:water_source")
-c_grass  = minetest.get_content_id("default:dirt_with_grass")
-c_dry_grass  = minetest.get_content_id("mg:dirt_with_dry_grass")
-c_dirt_snow  = minetest.get_content_id("default:dirt_with_snow")
-c_snow  = minetest.get_content_id("default:snow")
-c_sapling  = minetest.get_content_id("default:sapling")
-c_tree  = minetest.get_content_id("default:tree")
-c_leaves  = minetest.get_content_id("default:leaves")
-c_junglesapling  = minetest.get_content_id("default:junglesapling")
-c_jungletree  = minetest.get_content_id("default:jungletree")
-c_jungleleaves  = minetest.get_content_id("default:jungleleaves")
-c_savannasapling  = minetest.get_content_id("mg:savannasapling")
-c_savannatree = minetest.get_content_id("mg:savannatree")
-c_savannaleaves  = minetest.get_content_id("mg:savannaleaves")
-c_pinesapling  = minetest.get_content_id("mg:pinesapling")
-c_pinetree = minetest.get_content_id("mg:pinetree")
-c_pineleaves  = minetest.get_content_id("mg:pineleaves")
-c_dirt  = minetest.get_content_id("default:dirt")
-c_stone  = minetest.get_content_id("default:stone")
-c_water  = minetest.get_content_id("default:water_source")
-c_ice  = minetest.get_content_id("default:ice")
-c_sand  = minetest.get_content_id("default:sand")
-c_sandstone  = minetest.get_content_id("default:sandstone")
-c_desert_sand  = minetest.get_content_id("default:desert_sand")
-c_desert_stone  = minetest.get_content_id("default:desert_stone")
-c_snowblock  = minetest.get_content_id("default:snowblock")
-c_cactus  = minetest.get_content_id("default:cactus")
-c_grass_1  = minetest.get_content_id("default:grass_1")
-c_grass_2  = minetest.get_content_id("default:grass_2")
-c_grass_3  = minetest.get_content_id("default:grass_3")
-c_grass_4  = minetest.get_content_id("default:grass_4")
-c_grass_5  = minetest.get_content_id("default:grass_5")
+
+local function get_content_id(name)
+	name = minetest.registered_aliases[name] or name
+	return minetest.get_content_id(name)
+end
+
+c_air  = get_content_id("air")
+c_ignore  = get_content_id("ignore")
+c_water  = get_content_id("default:water_source")
+c_grass  = get_content_id("default:dirt_with_grass")
+c_dry_grass  = get_content_id("mg:dirt_with_dry_grass")
+c_dirt_snow  = get_content_id("default:dirt_with_snow")
+c_snow  = get_content_id("default:snow")
+c_sapling  = get_content_id("default:sapling")
+c_tree  = get_content_id("default:tree")
+c_leaves  = get_content_id("default:leaves")
+c_junglesapling  = get_content_id("default:junglesapling")
+c_jungletree  = get_content_id("default:jungletree")
+c_jungleleaves  = get_content_id("default:jungleleaves")
+c_savannasapling  = get_content_id("mg:savannasapling")
+c_savannatree  = get_content_id("mg:savannatree")
+c_savannaleaves  = get_content_id("mg:savannaleaves")
+c_pinesapling  = get_content_id("mg:pinesapling")
+c_pinetree  = get_content_id("mg:pinetree")
+c_pineleaves  = get_content_id("mg:pineleaves")
+c_dirt  = get_content_id("default:dirt")
+c_stone  = get_content_id("default:stone")
+c_water  = get_content_id("default:water_source")
+c_ice  = get_content_id("default:ice")
+c_sand  = get_content_id("default:sand")
+c_sandstone  = get_content_id("default:sandstone")
+c_desert_sand  = get_content_id("default:desert_sand")
+c_desert_stone  = get_content_id("default:desert_stone")
+c_snowblock  = get_content_id("default:snowblock")
+c_cactus  = get_content_id("default:cactus")
+c_grass_1  = get_content_id("default:grass_1")
+c_grass_2  = get_content_id("default:grass_2")
+c_grass_3  = get_content_id("default:grass_3")
+c_grass_4  = get_content_id("default:grass_4")
+c_grass_5  = get_content_id("default:grass_5")
 c_grasses = {c_grass_1, c_grass_2, c_grass_3, c_grass_4, c_grass_5}
-c_jungle_grass  = minetest.get_content_id("default:junglegrass")
-c_dry_shrub  = minetest.get_content_id("default:dry_shrub")
-c_papyrus  = minetest.get_content_id("default:papyrus")
+c_jungle_grass  = get_content_id("default:junglegrass")
+c_dry_shrub  = get_content_id("default:dry_shrub")
+c_papyrus  = get_content_id("default:papyrus")
 
 minetest.register_on_mapgen_init(function(mgparams)
 		minetest.set_mapgen_params({mgname = "singlenode", flags = "nolight"})
diff --git a/nodes.lua b/nodes.lua
index 24405ce..17b5744 100644
--- a/nodes.lua
+++ b/nodes.lua
@@ -84,6 +84,13 @@ minetest.register_abm({
 -- Pine tree
 -------------------------
 
+if minetest.registered_nodes["default:pine_tree"] ~= nil then
+	minetest.register_alias("mg:pinetree", "default:pine_tree")
+	minetest.register_alias("mg:pineleaves", "default:pine_needles")
+	minetest.register_alias("mg:pinewood", "default:pine_wood")
+	minetest.register_alias("mg:pinesapling", "default:pine_sapling")
+else
+
 minetest.register_node("mg:pinetree", {
 	description = "Pine Tree",
 	tiles = {"mg_pine_tree_top.png", "mg_pine_tree_top.png", "mg_pine_tree.png"},
@@ -162,10 +169,16 @@ minetest.register_abm({
 	end
 })
 
+end
+
 -------------------------
 -- Other
 -------------------------
 
+if minetest.registered_nodes["default:dirt_with_dry_grass"] ~= nil then
+	minetest.register_alias("mg:dirt_with_dry_grass", "default:dirt_with_dry_grass")
+else
+
 minetest.register_node("mg:dirt_with_dry_grass", {
 	description = "Dry Grass",
 	tiles = {"mg_dry_grass.png", "default_dirt.png", "default_dirt.png^mg_dry_grass_side.png"},
@@ -177,6 +190,8 @@ minetest.register_node("mg:dirt_with_dry_grass", {
 	}),
 })
 
+end
+
 minetest.register_node("mg:ignore", {
 	description = "MG Ignore",
 	drawtype = "airlike",