[TYPO3] Ho to change headertag of sitemap

[Andreas Balzer]

Hi!
I'm using T3 4.0.2 with CSS Styled Content and want to display a sitemap 
of my page. The problem is, that the h-tag is a h1, instead of a h2 tag. 
How to get T3 to display those headlines as a h2, instead of a h1? This 
seems to occur only with sitemaps. All other content elements seem to be 
  titled with a h2.

Any idea?

Greetings
Andreas