diff --git a/README.md b/README.md
index 21ca09d..afb246c 100644
--- a/README.md
+++ b/README.md
@@ -70,6 +70,7 @@ https://bitbucket.org/minetest_gamers/everness/issues
 - stairs
 - walls
 - x_obsidianmese (for paths)
+- x_tumbleweed (adds tumbleweeds to deserts)
 
 ## License
 
diff --git a/mod.conf b/mod.conf
index 750d28e..38ae196 100644
--- a/mod.conf
+++ b/mod.conf
@@ -1,6 +1,6 @@
 name = everness
 description = Never ending discovery in Everness mapgen.
 depends = default
-optional_depends = xpanes, doors, stairs, walls, x_obsidianmese
+optional_depends = xpanes, doors, stairs, walls, x_obsidianmese, x_tumbleweed
 supported_games = minetest_game
 min_minetest_version = 5.4