diff --git a/src/mapgen/mapgen.lua b/src/mapgen/mapgen.lua
index fca2dbc..84ffb12 100644
--- a/src/mapgen/mapgen.lua
+++ b/src/mapgen/mapgen.lua
@@ -96,7 +96,7 @@ function mcl_better_end.mapgen.gen(minp, maxp, seed)
     
         noise_size = {x = maxp.x-minp.x+1, y = maxp.y-minp.y+1, z = maxp.z-minp.z +1}
         perlin_map = minetest.get_perlin_map(np_perlin_3d, noise_size)
-        noise_map = perlin_map:get_3d_map({x=minp.x,y=minp.y,z=minp.z})
+        noise_map = perlin_map:get_3d_map({x=minp.x,z=minp.y,y=minp.z})
 -- Main generation loop
 if minp.y > YMAX_biome then
     for y = minp.y, maxp.y do