diff --git a/generate_config.sh b/generate_config.sh
index ecf5723a..34be645e 100755
--- a/generate_config.sh
+++ b/generate_config.sh
@@ -13,7 +13,7 @@ if [[ -f mailcow.conf ]]; then
 fi
 
 if [ -z "$MAILCOW_HOSTNAME" ]; then
-  read -p "Hostname (FQDN): " -ei "mx.example.org" MAILCOW_HOSTNAME
+  read -p "Hostname (FQDN - example.org is not a valid FQDN): " -ei "mx.example.org" MAILCOW_HOSTNAME
 fi
 
 if [[ -a /etc/timezone ]]; then