diff --git a/hosts/pi/default.nix b/hosts/pi/default.nix
index b40d74c..af19752 100644
--- a/hosts/pi/default.nix
+++ b/hosts/pi/default.nix
@@ -93,7 +93,7 @@
         retain = true;
       };
       serial = {
-        port = "/dev/ttyUSB0";
+        port = "/dev/serial/by-id/usb-Silicon_Labs_Sonoff_Zigbee_3.0_USB_Dongle_Plus_0001-if00-port0";
       };
       advanced = {
         channel = 20;