diff --git a/pkgs/tools/misc/fend/default.nix b/pkgs/tools/misc/fend/default.nix
index 893094b3ba18..46277cbb8121 100644
--- a/pkgs/tools/misc/fend/default.nix
+++ b/pkgs/tools/misc/fend/default.nix
@@ -7,6 +7,7 @@
 , installShellFiles
 , copyDesktopItems
 , makeDesktopItem
+, nix-update-script
 }:
 
 rustPlatform.buildRustPackage rec {
@@ -57,6 +58,8 @@ rustPlatform.buildRustPackage rec {
     })
   ];
 
+  passthru.updateScript = nix-update-script { };
+
   meta = with lib; {
     description = "Arbitrary-precision unit-aware calculator";
     homepage = "https://github.com/printfn/fend";