diff --git a/pkgs/by-name/wa/watchexec/package.nix b/pkgs/by-name/wa/watchexec/package.nix
index c6adc8d680dc..539390db5167 100644
--- a/pkgs/by-name/wa/watchexec/package.nix
+++ b/pkgs/by-name/wa/watchexec/package.nix
@@ -4,6 +4,7 @@
   rustPlatform,
   fetchFromGitHub,
   installShellFiles,
+  nix-update-script,
 }:
 
 rustPlatform.buildRustPackage (finalAttrs: {
@@ -41,6 +42,8 @@ rustPlatform.buildRustPackage (finalAttrs: {
       --zsh completions/zsh
   '';
 
+  passthru.updateScript = nix-update-script { };
+
   meta = {
     description = "Executes commands in response to file modifications";
     homepage = "https://watchexec.github.io/";