Oracle universal installer cannot continue installation if the user is root

I'm using Kali Linux and trying to install oracle by running ./runInstaller but I'm getting the following error.

root@kali:/opt/database# ./runInstallerThe user is root. Oracle Universal Installer cannot continue installation if the user is root.root@kali:/opt/database# 

Any help how to install Oracle in Kali Linux? or how to solve the above error?