[homeassistant.components.google_assistant.smart_home] aliases must be a list

I’ve set up the google assistant integration according to the documentation, but when I try to access it from the Google Home app, I just get a white screen, and in the home_assistant.log I see the following:

2017-10-29 12:09:46 WARNING (MainThread) [homeassistant.components.google_assistant.smart_home] aliases must be a list
I can see that I have any aliases set up at all in my config. What does this mean? Fwiw, my config is online at github: https://github.com/marcusramberg/.homeassistant

google_assistant:
  project_id: home-183813
  client_id: !secret ga_client_id
  access_token: !secret ga_client_secret
  exposed_domains:
  - switch
  - light
  - group

Those exposed domains all need two extra spaces in front of them

Nah, yaml is fine with it either way, andrewdolphin.

Btw, those ‘aliases must be a list’ entry comes a lot of times from the source, looks like once for every exposed device or so. Guess I’m hitting this line in the source code - https://github.com/home-assistant/home-assistant/blob/dev/homeassistant/components/google_assistant/smart_home.py#L89

Didn’t know that! Thanks.