diff --git a/instances/heimdall/configuration.nix b/instances/heimdall/configuration.nix
index bc4a911..22ac829 100644
--- a/instances/heimdall/configuration.nix
+++ b/instances/heimdall/configuration.nix
@@ -101,8 +101,8 @@ in
       enable = true;
       settings = {
         homeassistant = config.services.home-assistant.enable;
-        user = "zigbee2mqtt";
-        frontend = true;
+        mqtt.user = "zigbee2mqtt";
+        frontend.enabled = true;
         permit_join = true;
         serial = {
           port = "/dev/serial/by-id/usb-1a86_USB_Serial-if00-port0";