diff --git a/technic_worldgen/crafts.lua b/technic_worldgen/crafts.lua
index 9482deba..3453111b 100644
--- a/technic_worldgen/crafts.lua
+++ b/technic_worldgen/crafts.lua
@@ -136,13 +136,15 @@ minetest.register_craft({
 	output = "technic:wrought_iron_ingot",
 })
 
-minetest.register_craft({
-	output = "technic:marble_bricks 4",
-	recipe = {
-		{"technic:marble","technic:marble"},
-		{"technic:marble","technic:marble"}
-	}
-})
+if not minetest.get_modpath("underch") then
+	minetest.register_craft({
+		output = "technic:marble_bricks 4",
+		recipe = {
+			{"technic:marble","technic:marble"},
+			{"technic:marble","technic:marble"}
+		}
+	})
+end
 
 minetest.register_craft({
 	output = "technic:granite_bricks 4",
diff --git a/technic_worldgen/mod.conf b/technic_worldgen/mod.conf
index 9fc8a211..93ced82d 100644
--- a/technic_worldgen/mod.conf
+++ b/technic_worldgen/mod.conf
@@ -1,3 +1,3 @@
 name = technic_worldgen
 depends =
-optional_depends = default, mcl_core, mcl_sounds, mcl_init, mcl_worlds, mg
+optional_depends = default, mcl_core, mcl_sounds, mcl_init, mcl_worlds, mg, underch
diff --git a/technic_worldgen/nodes.lua b/technic_worldgen/nodes.lua
index 36a3fc6b..6cecebbf 100644
--- a/technic_worldgen/nodes.lua
+++ b/technic_worldgen/nodes.lua
@@ -79,25 +79,30 @@ else
 	})
 end
 
-minetest.register_node(":technic:marble", {
-	description = S("Marble"),
-	tiles = {"technic_marble.png"},
-	is_ground_content = true,
-	groups = {cracky=3, marble=1, pickaxey=1},
-	_mcl_hardness = 0.8,
-	_mcl_blast_resistance = 1,
-	sounds = technic.sounds.node_sound_stone_defaults(),
-})
+if minetest.get_modpath("underch") then
+	minetest.register_alias("technic:marble", "underch:marble")
+	minetest.register_alias("technic:marble_bricks", "underch:marble_brick")
+else
+	minetest.register_node(":technic:marble", {
+		description = S("Marble"),
+		tiles = {"technic_marble.png"},
+		is_ground_content = true,
+		groups = {cracky=3, marble=1, pickaxey=1},
+		_mcl_hardness = 0.8,
+		_mcl_blast_resistance = 1,
+		sounds = technic.sounds.node_sound_stone_defaults(),
+	})
 
-minetest.register_node(":technic:marble_bricks", {
-	description = S("Marble Bricks"),
-	tiles = {"technic_marble_bricks.png"},
-	is_ground_content = true,
-	groups = {cracky=3, pickaxey=1},
-	_mcl_hardness = 0.8,
-	_mcl_blast_resistance = 1,
-	sounds = technic.sounds.node_sound_stone_defaults(),
-})
+	minetest.register_node(":technic:marble_bricks", {
+		description = S("Marble Bricks"),
+		tiles = {"technic_marble_bricks.png"},
+		is_ground_content = true,
+		groups = {cracky=3, pickaxey=1},
+		_mcl_hardness = 0.8,
+		_mcl_blast_resistance = 1,
+		sounds = technic.sounds.node_sound_stone_defaults(),
+	})
+end
 
 minetest.register_node(":technic:uranium_block", {
 	description = S("Uranium Block"),
diff --git a/technic_worldgen/oregen.lua b/technic_worldgen/oregen.lua
index 3a193642..2f78ba30 100644
--- a/technic_worldgen/oregen.lua
+++ b/technic_worldgen/oregen.lua
@@ -210,7 +210,8 @@ if has_mcl then
 	})
 end
 
-if technic.config:get_bool("enable_marble_generation") then
+if technic.config:get_bool("enable_marble_generation")
+	and not minetest.get_modpath("underch") then
 	minetest.register_ore({
 		ore_type = "sheet",
 		ore = "technic:marble",