diff --git a/distro/nix/nixos.nix b/distro/nix/nixos.nix
index c873ca1c..5303ac8c 100644
--- a/distro/nix/nixos.nix
+++ b/distro/nix/nixos.nix
@@ -50,5 +50,6 @@ in
 
     services.power-profiles-daemon.enable = lib.mkDefault true;
     services.accounts-daemon.enable = lib.mkDefault true;
+    security.polkit.enable = lib.mkDefault true;
   };
 }
diff --git a/flake.nix b/flake.nix
index ea858140..49318ae6 100644
--- a/flake.nix
+++ b/flake.nix
@@ -48,6 +48,7 @@
           sonnet
           qtmultimedia
           qtimageformats
+          kimageformats
         ];
     in
     {