diff --git a/pkgs/tools/misc/qt6gtk2/default.nix b/pkgs/tools/misc/qt6gtk2/default.nix
index 59091d121c60..28a3e6e53589 100644
--- a/pkgs/tools/misc/qt6gtk2/default.nix
+++ b/pkgs/tools/misc/qt6gtk2/default.nix
@@ -1,4 +1,4 @@
-{ fetchFromGitHub, lib, stdenv, gtk2, pkg-config, qmake, qtbase }:
+{ fetchFromGitHub, lib, stdenv, gtk2, pkg-config, qmake, qtbase, unstableGitUpdater }:
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "qt6gtk2";
@@ -20,6 +20,8 @@ stdenv.mkDerivation (finalAttrs: {
     "PLUGINDIR=${placeholder "out"}/${qtbase.qtPluginPrefix}"
   ];
 
+  passthru.updateScript = unstableGitUpdater { };
+
   meta = {
     description = "GTK+2.0 integration plugins for Qt6";
     license = lib.licenses.gpl2Plus;