diff --git a/init.lua b/init.lua
index 8c49220..f9777b2 100644
--- a/init.lua
+++ b/init.lua
@@ -68,13 +68,14 @@ end
 -- whether to use biomes and heightmap
 fun_caves.use_bi_hi = false
 local mg_params = minetest.get_mapgen_params()
-if mg_params and mg_params.mgname ~= "v6" and mg_params.mgname ~= "v5" then
+local mgname = minetest.get_mapgen_setting('mg_name')
+if mgname ~= "v6" and mgname ~= "v5" then
 	fun_caves.use_bi_hi = true
 end
 
 
 minetest.register_on_mapgen_init(function(mgparams)
-	minetest.set_mapgen_params({flags="nocaves,nodungeons"})
+	minetest.set_mapgen_setting('mg_flags', "nocaves, nodungeons", true)
 end)