diff --git a/hosts/firefly/system/hardware/default.nix b/hosts/firefly/system/hardware/default.nix
index dfb4048..e3d88d7 100644
--- a/hosts/firefly/system/hardware/default.nix
+++ b/hosts/firefly/system/hardware/default.nix
@@ -36,6 +36,11 @@
       fsType = "btrfs";
       options = [ "subvol=@nix" "noatime" "nodiratime" "discard" ];
     };
+    "/etc/nixos" = {
+      device = "/dev/disk/by-uuid/bbfed7d1-62f2-4d8e-b63f-7f6ec932105b";
+      fsType = "btrfs";
+      options = [ "subvol=@nixconf" "noatime" "nodiratime" "discard" ];
+    };
     "/var" = {
       device = "/dev/disk/by-uuid/bbfed7d1-62f2-4d8e-b63f-7f6ec932105b";
       fsType = "btrfs";