diff --git a/pkgs/by-name/da/davmail/package.nix b/pkgs/by-name/da/davmail/package.nix
index 5dd8ca419701..7c922069c831 100644
--- a/pkgs/by-name/da/davmail/package.nix
+++ b/pkgs/by-name/da/davmail/package.nix
@@ -2,6 +2,7 @@
   stdenv,
   fetchFromGitHub,
   lib,
+  nix-update-script,
   makeWrapper,
   glib,
   gtk2,
@@ -76,6 +77,8 @@ stdenv.mkDerivation (finalAttrs: {
     runHook postInstall
   '';
 
+  passthru.updateScript = nix-update-script { };
+
   meta = with lib; {
     description = "Java application which presents a Microsoft Exchange server as local CALDAV, IMAP and SMTP servers";
     homepage = "https://davmail.sourceforge.net/";