diff --git a/bin/vmail-webmail-enable.sh b/bin/vmail-webmail-enable.sh
index 375b4dc..3946ae3 100755
--- a/bin/vmail-webmail-enable.sh
+++ b/bin/vmail-webmail-enable.sh
@@ -20,7 +20,7 @@ help()
   echo "  -d <domain> Domain to enable webmail for."
   echo ""
   echo "              Let's Encrypt certificate must already exist. If need be run this first:"
-  echo "              letsencrypt-certonly.sh -d <domain>"
+  echo "              letsencrypt-certonly.sh -d mail.<domain>"
 }
 
 vmail:getoptions "$@"