diff --git a/atau-wallpapers/default.nix b/atau-wallpapers/default.nix
index 50d4615..299061e 100644
--- a/atau-wallpapers/default.nix
+++ b/atau-wallpapers/default.nix
@@ -1,16 +1,20 @@
-{ lib, stdenv }:
+{ lib, stdenv, imagemagick }:
 
 stdenv.mkDerivation rec {
   name = "atau-wallpapers";
   pname = name;
   version = "1.0.0";
 
+  buildInputs = [ imagemagick ];
+
   src = ./assets;
 
   installPhase = ''
     runHook preInstall
   
     mkdir -p "$out/share/backgrounds/atau-wallpapers"
+
+    mogrify -format png *.*
     mv * "$out/share/backgrounds/atau-wallpapers/"
 
     runHook postInstall