diff --git a/hosts/x86_64-linux/arrow/default.nix b/hosts/x86_64-linux/arrow/default.nix
index f5b742f..d9eb386 100644
--- a/hosts/x86_64-linux/arrow/default.nix
+++ b/hosts/x86_64-linux/arrow/default.nix
@@ -29,4 +29,18 @@ rec {
 
   system.stateVersion = "23.05";
 
+  # These filesystems are ignored by nixos-generators
+
+  # This is the root filesystem containing NixOS
+  fileSystems."/" = {
+    device = "/dev/disk/by-label/nixos";
+    fsType = "ext4";
+  };
+
+  # This is the boot filesystem for Grub
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-label/boot";
+    fsType = "vfat";
+  };
+
 }