Force_update on auto discovered sensors


I’ve seen that an option force_update can be added to sensors declared in the configuration.yaml file to make sure an update of sensor value is done even thought the value reported is the same as the last one received.
I’m however wondering how to use this option with sensors which are auto discovers.
I have a few temperature sensors using esphomelib which are detected automatically by home assistant (via MQTT) and thus have no corresponding lines for these sensors in my configuration.yaml.

Do I need to re-declare these in my config (seems a bit counter productive with auto-discovery and I’m worried this double definition will create issues) ? Is there another way to do this ?

Thanks in advance for your help :slight_smile: