diff --git a/installer.sh b/installer.sh
index 0dab61f..65d4d5d 100644
--- a/installer.sh
+++ b/installer.sh
@@ -15,9 +15,23 @@
 echo "Ubuntu 18.04 installatie script."
 echo "Domein zonder www:"
 read domain
-echo 'Hostname (eg: VCH001) zonder ".ictmaatwerk-cs.nl":'
-read hostname
-hostname=$hostname".ictmaatwerk-cs.nl"
+
+while true; do
+    read -p "Hostname with ictmaatwerk-cs.nl -> yes/no?" yn
+    case $yn in
+        [Nn]* )
+        echo 'Enter full hostname:'
+        read hostname
+        break;;
+        [Yy]* )
+        echo 'Hostname (eg: VCH001) zonder ".ictmaatwerk-cs.nl":'
+        read hostname
+        hostname=$hostname".ictmaatwerk-cs.nl"
+        break;;
+        * )echo "Choose yes or no.";;
+    esac
+done
+
 while true; do
     read -p "bestaat www.${domain} in DNS -> yes/no?" yn
     case $yn in