Linebreak in Header line

Hi,

I have for one of my Docbook documents a longer title for one chapter, e.g. "Distributed Version control with Git". As the result the pdf output show this chapter title in two rows.

Is there a parameter for the XSLT sheets to prevent this? It feel to me that there is sufficient space in the header for this title. 

Example attached.

Best regards, Lars

-- 
Lars
http://www.vogella.de - Eclipse, Android and Java Tutorials
http://www.twitter.com/vogella - Lars on Twitter

Attachment:
Linebreak.png

Description: PNG image