diff --git a/pkgs/by-name/ap/app2unit/package.nix b/pkgs/by-name/ap/app2unit/package.nix
index 0689a92a89e0..1bd070e7d145 100644
--- a/pkgs/by-name/ap/app2unit/package.nix
+++ b/pkgs/by-name/ap/app2unit/package.nix
@@ -4,6 +4,7 @@
   dash,
   scdoc,
   fetchFromGitHub,
+  nix-update-script,
 }:
 stdenvNoCC.mkDerivation rec {
   pname = "app2unit";
@@ -16,6 +17,8 @@ stdenvNoCC.mkDerivation rec {
     sha256 = "sha256-7eEVjgs+8k+/NLteSBKgn4gPaPLHC+3Uzlmz6XB0930=";
   };
 
+  passthru.updateScript = nix-update-script { };
+
   nativeBuildInputs = [ scdoc ];
 
   buildPhase = ''