Adding a domain with special characters

[LeetDonkey]

Hello

I'm trying to add lundstrøm.com to a user in the webpanel.
Unfortunately I receive the message 'Warning!: No special characters are allowed!'
How should I proceed?
Is it enough to add xn--lundstrm-c5a.com instead?

[darkness]

Try. Should be ok.

[LeetDonkey]

I can confirm that it works.