diff --git a/nix/modules/hive-forge.nix b/nix/modules/hive-forge.nix
index 9187c28..67e29c0 100644
--- a/nix/modules/hive-forge.nix
+++ b/nix/modules/hive-forge.nix
@@ -115,7 +115,7 @@ in
           # the nix store — no separate hive-forge container rebuild needed,
           # and no persistent-state directory involved.
           staticRootWithTheme = pkgs.runCommand "forgejo-static-with-theme" { } ''
-            cp -r ${cfg.package.data}/. $out/
+            cp -r --no-preserve=mode,ownership ${cfg.package.data}/. $out/
             mkdir -p $out/public/assets/css
             cp ${../forge-theme/theme-catppuccin-vibec0re.css} \
                $out/public/assets/css/theme-catppuccin-vibec0re.css