Account > Website field prepended with http://


I see that the default (tried in fresh dev install of  Enterprise 11.1) behaviour in the Account Module's Website [URL] Field is to prepend it with http://, rather than https:// ?

This is not done inside the Studio for the field though.   

Anybody know how to change it to https://  ?

Thank you :-)

Example:  enter some text in the filed, say: luke.

Before save it changes to http://luke.

For some related website work we need this to be https.