Accidentally clicked "Never for this website" when prompt to save password

This has been going for a while and I don't know how to fix it. I have cleared History and website Data and I have also deleted the link under saved passwords to start all over again and it still does not ask me for that particular website anymore. I have turned Keychain on but nothing.

How do you make safari ask you again to save a password after you have clicked "Never for this website"?