diff --git a/hosts/tachibana/default.nix b/hosts/tachibana/default.nix
index b2b8096..aadccd2 100644
--- a/hosts/tachibana/default.nix
+++ b/hosts/tachibana/default.nix
@@ -2,6 +2,7 @@
   config,
   pkgs,
   inputs,
+  lib,
   ...
 }: {
   imports = [
@@ -28,7 +29,13 @@
     deviceSection = ''Option "TearFree" "true"'';
   };
   hardware.nvidia.open = true;
-  nixpkgs.config.allowUnfree = true;
+  nixpkgs.config.allowUnfreePredicate = pkg:
+    builtins.elem (lib.getName pkg) [
+      "nvidia-x11"
+      "nvidia-settings"
+    ]
+    || pkgs._cuda.lib.allowUnfreeCudaPredicate pkg;
+
   users.users.ahnwuoa = {
     isNormalUser = true;
     extraGroups = ["wheel"];