diff --git a/pkgs/by-name/de/deadnix/package.nix b/pkgs/by-name/de/deadnix/package.nix
index b6572fd953e8..caf7a3d9f83a 100644
--- a/pkgs/by-name/de/deadnix/package.nix
+++ b/pkgs/by-name/de/deadnix/package.nix
@@ -2,6 +2,7 @@
   lib,
   fetchFromGitHub,
   rustPlatform,
+  nix-update-script,
 }:
 
 rustPlatform.buildRustPackage (finalAttrs: {
@@ -17,6 +18,10 @@ rustPlatform.buildRustPackage (finalAttrs: {
 
   cargoHash = "sha256-IgGuWIsDsiMqscO4B876iTCdrR+nI9bpTQOyxjCtjMk=";
 
+  passthru = {
+    updateScript = nix-update-script { };
+  };
+
   meta = {
     description = "Find and remove unused code in .nix source files";
     homepage = "https://github.com/astro/deadnix";