diff --git a/README.md b/README.md
index 93517aa..dc4e561 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,11 @@ Antigravitaattori
 
 Multiplayer flying saucer racing game.
 
-This is a forked version of the original game, featuring the following changes:
+This is a fork of https://github.com/aither64/antigravitaattori
+that adds a nix flake to more easily build the game.
+
+https://github.com/aither64/antigravitaattori is a fork of the original game,
+featuring the following changes:
 
  - ported to libpng 1.6
  - ported to SDL 2.0