diff --git a/nixos-infect b/nixos-infect
index 1b614bf..a190d7f 100644
--- a/nixos-infect
+++ b/nixos-infect
@@ -96,9 +96,10 @@ EOF
 makeLightsailConf() {
   mkdir -p /etc/nixos
   cat > /etc/nixos/configuration.nix << EOF
-{ config, pkgs, modulesPath, ... }:
+{ config, pkgs, modulesPath, lib, ... }:
 {
   imports = [ "\${modulesPath}/virtualisation/amazon-image.nix" ];
+  boot.loader.grub.device = lib.mkForce "/dev/nvme0n1";
 }
 EOF
 }