diff --git a/flake.nix b/flake.nix
index 7e1362f..7d3b821 100644
--- a/flake.nix
+++ b/flake.nix
@@ -20,7 +20,10 @@
       mkNixos = system: modules: nixpkgs.lib.nixosSystem {
         system = system;
         modules = [
-          ({ config, pkgs, ... }: { nixpkgs.overlays = [ overlay-unstable ]; })
+          ({ config, pkgs, ... }: {
+             nixpkgs.overlays = [ overlay-unstable ];
+             nixpkgs.config.allowUnfree = true;
+           })
         ] ++ modules;
         specialArgs = { inherit inputs self; };
       };