diff --git a/hosts/firefly/boot/default.nix b/hosts/firefly/boot/default.nix
index 9c628ba..7387c7a 100644
--- a/hosts/firefly/boot/default.nix
+++ b/hosts/firefly/boot/default.nix
@@ -37,7 +37,7 @@ in {
           serviceConfig.Type = "oneshot";
           script = ''
             mkdir -p /mnt
-            mount /dev/nixos/root /mnt
+            mount /dev/firefly/root /mnt
 
             if [[ -e /mnt/prev ]]; then
               btrfs subvolume delete /mnt/prev