diff --git a/nix/flake.nix b/nix/flake.nix
index 662e513..6d05ba0 100644
--- a/nix/flake.nix
+++ b/nix/flake.nix
@@ -16,6 +16,7 @@
       overlays = [
         self.overlays."${system}".xonsh_with_plugins
       ];
+      config.allowUnfree = true;
     });
 
     mkHomeConfig = ({system, username ? "ttm" }: home-manager.lib.homeManagerConfiguration {