diff --git a/.envrc.sample b/.envrc.sample
index 423bad1..3bf68f6 100644
--- a/.envrc.sample
+++ b/.envrc.sample
@@ -1,6 +1,9 @@
 export SERVICE=matomo
-export DOMAIN=matomo.example.com
 export STACK_NAME=matomo
+
+export DOMAIN=matomo.example.com
+## Domain aliases
+#export EXTRA_DOMAINS=', `www.wordpress.example.com`'
 export LETS_ENCRYPT_ENV=production
 
 export DB_PASSWORD_VERSION=v1