diff --git a/aliases.lua b/aliases.lua
index 9a89f17..8742f44 100644
--- a/aliases.lua
+++ b/aliases.lua
@@ -86,7 +86,7 @@ minetest.register_alias("desertstone_u", "maptools:desert_stone")
 minetest.register_alias("desert_sand_u", "maptools:desert_sand")
 minetest.register_alias("desertsand_u", "maptools:desert_sand")
 minetest.register_alias("leaves_u", "maptools:leaves")
-minetest.register_alias("grass_u", "maptools:glass")
+minetest.register_alias("grass_u", "maptools:grass")
 minetest.register_alias("fullgrass", "maptools:fullgrass")
 minetest.register_alias("fullgrass_u", "maptools:fullgrass")
 minetest.register_alias("mossycobble_u", "maptools:mossycobble")