Rfxtrx Sensors keep getting different ID

Hi,

Everytime I restart home assistant my radio devices get a different ID. This is a snippet of my configuration.yaml:

sensor:
  - platform: yr
  - platform: rfxtrx
    automatic_add: True

rfxtrx:
  device: /dev/serial/by-id/usb-RFXCOM_RFXtrx433_A1WYTA7G-if00-port0

How can I make the sensor ID persistent between restarts?

Thanks in advance,
Al