diff --git a/systems/LoutreOS/services.nix b/systems/LoutreOS/services.nix
index cc80d36..f373e0a 100644
--- a/systems/LoutreOS/services.nix
+++ b/systems/LoutreOS/services.nix
@@ -183,6 +183,7 @@ in
     zigbee2mqtt = {
       enable = true;
       settings = {
+        serial.port = "/dev/serial/by-id/usb-Texas_Instruments_TI_CC2531_USB_CDC___0X00124B0014D97058-if00";
         mqtt = {
           server = "mqtt://${(head config.services.mosquitto.listeners).address}:${toString (head config.services.mosquitto.listeners).port}";
         };