diff --git a/.env.sample b/.env.sample
index 3e84dc5..ede9e8f 100644
--- a/.env.sample
+++ b/.env.sample
@@ -6,6 +6,8 @@ ENABLE_BACKUPS=true
 DOMAIN=nextcloud.example.com
 ## Domain aliases
 #EXTRA_DOMAINS=', `www.nextcloud.example.com`'
+# same list as above but space separated
+#EXTRA_DOMAINS_TRUSTED=cloud.coquest.coop
 LETS_ENCRYPT_ENV=production
 
 COMPOSE_FILE="compose.yml"