diff --git a/overlays/default.nix b/overlays/default.nix
index b0c50b4..8fda515 100644
--- a/overlays/default.nix
+++ b/overlays/default.nix
@@ -13,9 +13,8 @@
   # You can change versions, add patches, set compilation flags, anything really.
   # https://nixos.wiki/wiki/Overlays
   modifications = final: prev: {
-    # example = prev.example.overrideAttrs (oldAttrs: rec {
-    # ...
-    # });
+    # avoid build failure on darwin
+    inherit (final.unstable) ghostscript;
   };
 
   # When applied, the unstable nixpkgs set (declared in the flake inputs) will