diff --git a/mapgen.lua b/mapgen.lua
index d40954b..3cc057c 100644
--- a/mapgen.lua
+++ b/mapgen.lua
@@ -143,10 +143,10 @@ add_biome("frost_ocean", nil, "default:silver_sand", 1, "default:silver_sand", 2
 add_biome("grassy", nil, "ethereal:green_dirt", 1, "default:dirt", 3,
 	nil, nil, nil, nil, nil, 6, 119, 50, 40, ethereal.grassy)
 
-add_biome("grassy_dunes", nil, "defaut:sand", 1, "defaut:gravel", 3,
+add_biome("grassy_dunes", nil, "default:sand", 1, "defaut:gravel", 3,
 	nil, nil, nil, nil, nil, 5, 5, 50, 40, ethereal.grassy)
 
-add_biome("grassy_ocean", nil, "defaut:sand", 2, "default:gravel", 1,
+add_biome("grassy_ocean", nil, "default:sand", 2, "default:gravel", 1,
 	nil, nil, nil, nil, nil, -310, 4, 50, 40, ethereal.grassy)
 
 add_biome("grayness", nil, "ethereal:gray_dirt", 1, "default:dirt", 3,