diff --git a/nixos/boxes/bolty/home-assistant.nix b/nixos/boxes/bolty/home-assistant.nix
index c0b1f01d..3dcfb0e1 100644
--- a/nixos/boxes/bolty/home-assistant.nix
+++ b/nixos/boxes/bolty/home-assistant.nix
@@ -16,6 +16,8 @@ in {
   networking.firewall.allowedTCPPorts = [port 1883 8089];
   services.mosquitto = {
     enable = true;
+    package = inputs.nixpkgs-nixos-unstable.legacyPackages."${system}".mosquitto;
+    dataDir = "/data/mosquitto";
     listeners = [
       {
         port = 1883;