how to get "h" instead of "b" in notenames

[Stefan Thomas]

Dear community,

in the below quoted snippet I get "b" instead of the german "h". How can I achieve it?

\version "2.18.2"

\language "deutsch"

e' { e1 g h d f }

\score {

<<

\new Staff \onthelines

\new NoteNames \onthelines

>>

}