diff --git a/systems/x86_64-linux/nixtee1/default.nix b/systems/x86_64-linux/nixtee1/default.nix
index 25d8cb4..e376b36 100644
--- a/systems/x86_64-linux/nixtee1/default.nix
+++ b/systems/x86_64-linux/nixtee1/default.nix
@@ -1,15 +1,17 @@
 {
   pkgs,
   lib,
-  config,
   ...
 }:
-with lib;
-with lib.metacfg;
 {
   imports = [ ./hardware-configuration.nix ];
 
   boot.kernelPackages = lib.mkOverride 0 pkgs.linuxPackages_latest;
+  boot.loader.systemd-boot.enable = false;
+  # Bootloader.
+  boot.loader.grub.enable = true;
+  boot.loader.grub.device = "/dev/vda";
+  boot.loader.grub.useOSProber = true;
 
   metacfg = {
     base.enable = true;