diff --git a/lib/default.nix b/lib/default.nix
index e6a2644b..596fef6c 100644
--- a/lib/default.nix
+++ b/lib/default.nix
@@ -45,6 +45,7 @@
   }: inputs.nixos-generators.nixosGenerate {
     specialArgs = { inherit inputs outputs desktop hostname username stateVersion gpu platform theme format; };
     system = "$platform";
+    format = "$format";
     modules = [
       ../nixos
       inputs.sops-nix.nixosModules.sops