diff --git a/nixos/boxes/foureighty/default.nix b/nixos/boxes/foureighty/default.nix
index 3360a3ab..474048ca 100644
--- a/nixos/boxes/foureighty/default.nix
+++ b/nixos/boxes/foureighty/default.nix
@@ -19,11 +19,11 @@
   ];
 
   boot.kernelPackages = pkgs.unstable.linuxPackages_latest_hardened;
-  loader.grub = {
-   enable = true;
-   version = 2;
-   useOSProber = true;
-   memtest86.enable = true;
+  boot.loader.grub = {
+    enable = true;
+    version = 2;
+    useOSProber = true;
+    memtest86.enable = true;
   };
   time.hardwareClockInLocalTime = true;
   time.timeZone = "Europe/London";