Scheme is removed from url in safari

If I call a website with an unknown “tld” like .loc, then safari is removing the scheme (in this case http://). This means that Safari will do a quick search, if I want to change something in the url.

Example:
I call a website http://foo-project.loc/bar/baz. The website is getting opened.
If I want to change baz to boo, then Safari opens a Google quick search.
How can I prevent Safari from removing the scheme from the url, because I actually like it to quick search in the url bar.