diff --git a/docs/architecture_hassio.md b/docs/architecture_hassio.md
index e7be8ee7..9b421975 100644
--- a/docs/architecture_hassio.md
+++ b/docs/architecture_hassio.md
@@ -15,7 +15,7 @@ This is a daemon running on the host machine that allows the supervisor to contr
 
 ## Host
 
-Our pre-build images are based on [ResinOS]. Any Linux machine can be turned into a Hass.io host by running [the installer][linux].
+Our pre-build images are based on [HassOS] which is based on [BuildRoot]. Any Linux machine can be turned into a Hass.io host by running [the installer][linux].
 
 ## Supervisor
 
@@ -25,5 +25,6 @@ The supervisor offers an API to manage the host and running the Docker container
 
 The configuration panel lives inside the supervisor but is accessible via the Home Assistant user interface. The configuration panel allows the user to manage the installation.
 
-[ResinOS]: https://resinos.io/
+[HassOS]: https://github.com/home-assistant/hassos
+[BuildRoot]: https://buildroot.org/
 [linux]: https://www.home-assistant.io/hassio/installation/#alternative-install-on-generic-linux-server