diff --git a/game.conf b/game.conf
index d461155..bbed262 100644
--- a/game.conf
+++ b/game.conf
@@ -1,3 +1,4 @@
 name = Tutorial
 description = Learn how to play Minetest.
 disallowed_mapgens = v5, v6, v7, valleys, carpathian, fractal, flat
+allowed_mapgens = singlenode