diff --git a/configuration.nix b/configuration.nix
index ebf99f9..6d40bf3 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -198,7 +198,7 @@ in
   # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
   system.stateVersion = "23.11"; # Did you read the comment?
   nix.settings.substituters = [ "https://mirrors.ustc.edu.cn/nix-channels/store" ];
-  allowUnfree = true;
+  nixpkgs.config.allowUnfree = true;
   nixpkgs.config.packageOverrides = pkgs: {
 #  nur = import (builtins.fetchTarball "https://github.com/nix-community/NUR/archive/master.tar.gz") {
 #    inherit pkgs;