diff --git a/core/system/file-manager.nix b/core/system/file-manager.nix
index c4ff784..0aa206d 100644
--- a/core/system/file-manager.nix
+++ b/core/system/file-manager.nix
@@ -11,6 +11,9 @@
   # Explicitly enable Thunar for D-Bus integration
   programs.thunar.enable = lib.mkDefault true;
 
+  # Required for drive management (mount/unmount) and other privileged actions
+  security.polkit.enable = true;
+
   # Allow Thunar to use gvfs (trash, network mounts, etc.)
   programs.thunar.plugins = with pkgs.xfce; [
     thunar-archive-plugin