diff --git a/conf/homeassistant_conf_files/configuration.yaml b/conf/homeassistant_conf_files/configuration.yaml
index 8d2ec90..b4e64f5 100644
--- a/conf/homeassistant_conf_files/configuration.yaml
+++ b/conf/homeassistant_conf_files/configuration.yaml
@@ -1,4 +1,5 @@
 homeassistant:
+  external_url: "https://__DOMAIN__"
   auth_providers:
    - type: command_line
      command: __DATA_PATH__/bin/ynh_ldap-auth.sh