diff --git a/modules/wallpaper.nix b/modules/wallpaper.nix
index c16b3ea..d3ef044 100644
--- a/modules/wallpaper.nix
+++ b/modules/wallpaper.nix
@@ -1,7 +1,8 @@
 { pkgs, lib }:
 let
+  # TODO use formula: 1920×16÷9÷3×2
   # Width of our display.
-  max-width = "1920";
+  max-width = "2276";
 in
   pkgs.stdenv.mkDerivation rec{
     name = "yoda-wallpaper";