diff --git a/pkgs/by-name/un/unionfs-fuse/package.nix b/pkgs/by-name/un/unionfs-fuse/package.nix
index 53d7b38bd377..044d53d94784 100644
--- a/pkgs/by-name/un/unionfs-fuse/package.nix
+++ b/pkgs/by-name/un/unionfs-fuse/package.nix
@@ -1,4 +1,5 @@
 {
+  nix-update-script,
   lib,
   stdenv,
   fetchFromGitHub,
@@ -50,6 +51,8 @@ stdenv.mkDerivation rec {
     substituteInPlace $out/sbin/mount.unionfs-fuse --replace unionfs $out/bin/unionfs
   '';
 
+  passthru.updateScript = nix-update-script { };
+
   meta = {
     broken = stdenv.hostPlatform.isDarwin;
     description = "FUSE UnionFS implementation";