diff --git a/biome_defs.lua b/biome_defs.lua
index 07a3471..7e4b505 100644
--- a/biome_defs.lua
+++ b/biome_defs.lua
@@ -161,9 +161,9 @@ moretrees.jungletree_biome = {
 	seed_diff = 329,
 	min_elevation = 1,
 	near_nodes = minetest.get_modpath("default") and {"default:jungletree"} or nil,
-	near_nodes_size = 6,
-	near_nodes_vertical = 2,
-	near_nodes_count = 1,
+	near_nodes_size = minetest.get_modpath("default") and 6 or nil,
+	near_nodes_vertical = minetest.get_modpath("default") and 2 or nil,
+	near_nodes_count = minetest.get_modpath("default") and 1 or nil,
 	plantlife_limit = -0.9,
 	biomes = {"rainforest", "rainforest_swamp"},
 }
diff --git a/init.lua b/init.lua
index d370ed9..d4e9fc1 100644
--- a/init.lua
+++ b/init.lua
@@ -28,7 +28,7 @@ if minetest.get_modpath("default") then
 		description = "Wooden Planks"
 	})
 
-	minetest.override_item("default:leaves", {
+	minetest.override_item(xcompat.materials.apple_leaves, {
 		description = "Leaves"
 	})
 
@@ -315,7 +315,7 @@ function moretrees.grow_jungletree(pos)
 	minetest.swap_node(pos, {name = "air"})
 	local leaves = minetest.find_nodes_in_area(
 		{x = pos.x-1, y = pos.y, z = pos.z-1}, {x = pos.x+1, y = pos.y+10, z = pos.z+1},
-		"default:leaves"
+		xcompat.materials.apple_leaves
 	)
 	for leaf in ipairs(leaves) do
 			minetest.swap_node(leaves[leaf], {name = "air"})
@@ -346,7 +346,7 @@ function moretrees.grow_fir(pos)
 	local leaves = minetest.find_nodes_in_area(
 		{x = pos.x, y = pos.y, z = pos.z},
 		{x = pos.x, y = pos.y+5, z = pos.z},
-		"default:leaves"
+		xcompat.materials.apple_leaves
 	)
 	for leaf in ipairs(leaves) do
 		minetest.swap_node(leaves[leaf], {name = "air"})
@@ -377,7 +377,7 @@ function moretrees.grow_fir_snow(pos)
 	local leaves = minetest.find_nodes_in_area(
 		{x = pos.x, y = pos.y, z = pos.z},
 		{x = pos.x, y = pos.y+5, z = pos.z},
-		"default:leaves"
+		xcompat.materials.apple_leaves
 	)
 	for leaf in ipairs(leaves) do
 			minetest.swap_node(leaves[leaf], {name = "air"})
diff --git a/node_defs.lua b/node_defs.lua
index 70f0e98..c061c23 100644
--- a/node_defs.lua
+++ b/node_defs.lua
@@ -224,7 +224,7 @@ end
 -- redefine default leaves to handle plantlike and/or leaf decay options
 
 if minetest.get_modpath("default") and moretrees.plantlike_leaves then
-	minetest.override_item("default:leaves", {
+	minetest.override_item(xcompat.materials.apple_leaves, {
 		inventory_image = minetest.inventorycube("default_leaves.png"),
 		drawtype = "plantlike",
 		visual_scale = math.sqrt(2)
@@ -234,7 +234,7 @@ end
 -- redefine default jungle leaves for same
 
 if minetest.get_modpath("default") and moretrees.plantlike_leaves then
-	minetest.override_item("default:jungleleaves", {
+	minetest.override_item(xcompat.materials.jungle_leaves, {
 		inventory_image = minetest.inventorycube("default_jungleleaves.png"),
 		drawtype = "plantlike",
 		visual_scale = math.sqrt(2)
@@ -647,7 +647,7 @@ if minetest.get_modpath("default") then
 
 	default.register_leafdecay({
 		trunks = { "default:jungletree", "moretrees:jungletree_trunk" },
-		leaves = { "default:jungleleaves", "moretrees:jungletree_leaves_yellow", "moretrees:jungletree_leaves_red" },
+		leaves = { xcompat.materials.jungle_leaves, "moretrees:jungletree_leaves_yellow", "moretrees:jungletree_leaves_red" },
 		radius = moretrees.leafdecay_radius,
 	})
 end
@@ -763,7 +763,7 @@ minetest.register_alias("conifers:sapling",						"moretrees:fir_sapling")
 minetest.register_alias("moretrees:jungletree_sapling",			"default:junglesapling")
 minetest.register_alias("moretrees:jungletree_trunk_sideways",	"moreblocks:horizontal_jungle_tree")
 minetest.register_alias("moretrees:jungletree_planks",			"default:junglewood")
-minetest.register_alias("moretrees:jungletree_leaves_green",	"default:jungleleaves")
+minetest.register_alias("moretrees:jungletree_leaves_green",	xcompat.materials.jungle_leaves)
 
 minetest.register_alias("moretrees:acacia_trunk",				"default:acacia_tree")
 minetest.register_alias("moretrees:acacia_planks",				"default:acacia_wood")
diff --git a/tree_models.lua b/tree_models.lua
index 1db353c..7824ea6 100644
--- a/tree_models.lua
+++ b/tree_models.lua
@@ -252,7 +252,7 @@ moretrees.jungletree_model={
 	rules_a=nil,
 	rules_b=nil,
 	trunk="moretrees:jungletree_trunk",
-	leaves="default:jungleleaves",
+	leaves=xcompat.materials.jungle_leaves,
 	leaves2=nil,
 	leaves2_chance=nil,
 	angle=45,