# [Dev-luatex] Problem using umlaut in hyphenation

David Kastrup dak at gnu.org
Tue Apr 1 11:58:42 CEST 2008

```"Jonathan Sauer" <Jonathan.Sauer at silverstroke.com> writes:

> Hello,
>
>> > Am I doing something wrong?
>>
>> You are missing two things:
>>
>> * the \lccode of ü has to be nonzero for it to be a valid
>>    word constituent
>
> Oh. I thought since hyphenation has been completely been revamped,
> the requirement of a non-zero \lccode has been removed. Especially
> since I did not get an error message (IIRC, the original TeX