diff --git a/install-mysqlbu.sh b/install-mysqlbu.sh
index 90a68a2..7090dc3 100755
--- a/install-mysqlbu.sh
+++ b/install-mysqlbu.sh
@@ -23,6 +23,8 @@ fi
 do_with_root git clone https://git.schroedercity.com/voltron/MySQL-BU.git /opt/idssys/mysqlbu
 do_with_root ln -s /opt/idssys/mysqlbu/run.sh /usr/local/bin/mysqlbu
 echo -e "BACKUP_PATH='/var/lib/mysql-backups/'
+BACKUP_HOST_IP=''
+BACKUP_HOST_PORT=''
 MYSQLUSER=''
 MYSQLPASS=''
 MYSQLCFG='/etc/mysql/my.cnf'