diff --git a/.env.sample b/.env.sample
index 6ddc5b9..463df1e 100644
--- a/.env.sample
+++ b/.env.sample
@@ -48,7 +48,7 @@ SECRET_DB_PASSWORD_VERSION=v1
 #MAIL_FROM="wordpress@example.com"
 
 # Remote SMTP relay
-#COMPOSE_FILE="$COMPOSE_FILE:compose.smtp.yml"
+#COMPOSE_FILE="$COMPOSE_FILE:compose.mailrelay.yml:compose.smtp.yml"
 #SMTP_HOST="mail.example.com"
 #MAIL_FROM="wordpress@example.com"
 #SMTP_USER="wordpress@example.com"  # optional, defaults to MAIL_FROM