diff --git a/scripts/install b/scripts/install
index 1efdfa889a3691fc37cfa07a81a668908b41e13a..855f76b670acffef4ededda0f179873a124b6348 100755
--- a/scripts/install
+++ b/scripts/install
@@ -3,10 +3,13 @@
 MYSQL_ROOT_PASSWORD=`tr -dc A-Za-z0-9_ < /dev/urandom | head -c 20 | xargs`
 NEXTCLOUD_ADMIN_PASSWORD=`tr -dc A-Za-z0-9_ < /dev/urandom | head -c 20 | xargs`
 
+var=$(for folder in `ls /data/domains`; do cat /data/domains/$folder/.env | grep SUBNET | cut -d"=" -f2; done | sort | tail -n1)
+SUBNET=$(($var +1))
+
 echo "MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD}" > .env
-echo "SUBNET=1" >> .env
 echo "MYSQL_PASSWORD=${MYSQL_ROOT_PASSWORD}" >> .env
 echo "NEXTCLOUD_ADMIN_PASSWORD=${MYSQL_ROOT_PASSWORD}" >> .env
+echo "SUBNET=${SUBNET}" >> .env
 
 cat > mail.config.php <<EOF
 <?php
@@ -23,3 +26,5 @@ cat > mail.config.php <<EOF
   'mail_smtpsecure' => 'tls',
 );
 EOF
+
+