diff --git a/flake.nix b/flake.nix
index b85f2b2..878f77b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -68,7 +68,7 @@
           inherit cargoArtifacts;
           postInstall = ''
             mkdir -p $out/share/sounds
-            cp $src/ding.mp3 $out/share/sounds/
+            cp ${./ding.mp3} $out/share/sounds/
           '';
         });
       in rec {