diff --git a/mods/mapgen/init.lua b/mods/mapgen/init.lua
index c5f1640..0808319 100644
--- a/mods/mapgen/init.lua
+++ b/mods/mapgen/init.lua
@@ -13,8 +13,9 @@ core.register_alias("mapgen_water_source", "air")
 
 core.register_biome({
 	name = "cavegame",
-	node_top = "minecraft:grass",
-	depth_top = 1,
+	node_dust = "minecraft:grass",
+--	node_top = "minecraft:grass",
+--	depth_top = 1,
 	node_stone = "minecraft:stone",
 	heat_point = 50,
 	humidity_point = 50,