Board Thread:Manga/@comment-34206878-20180104051657

Why is Mikasas Surname Ackermann written with two n and Levis name is only written with one?

could you please correct this?

Ackermann is a german word and originally written with two n.

And why is the name Ackermann in the Anime version of Mikasa with two n and in the Manga version with only one? 