diff --git a/pkgs/data/themes/marwaita-peppermint/default.nix b/pkgs/data/themes/marwaita-peppermint/default.nix
index 6873cd31f8dd..3313d2dab928 100644
--- a/pkgs/data/themes/marwaita-peppermint/default.nix
+++ b/pkgs/data/themes/marwaita-peppermint/default.nix
@@ -5,6 +5,7 @@
 , gtk-engine-murrine
 , gtk_engines
 , librsvg
+, gitUpdater
 }:
 
 stdenv.mkDerivation rec {
@@ -37,6 +38,8 @@ stdenv.mkDerivation rec {
     runHook postInstall
   '';
 
+  passthru.updateScript = gitUpdater { };
+
   meta = with lib; {
     description = "Marwaita GTK theme with Peppermint Os Linux style";
     homepage = "https://www.pling.com/p/1399569/";