diff --git a/configuration.nix b/configuration.nix
index be108a0..1dd43af 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -23,6 +23,8 @@
   ];
 
   systemd.services.mixer-mqtt = {
+    wantedBy = [ "multi-user.target" ]; # auto-start at boot
+
     serviceConfig = {
       ExecStart = "${pkgs.python3.withPackages (p: with p; [ paho-mqtt mido ])}/bin/python3 /root/mixer-rpc/mqtt_client.py 172.23.42.20 172.23.42.25";
       Restart = "always";