[TYPO3-ttnews] LIST view: link categories

[Hauke Hain]

Hi,

do someone know why the following TS doesn't create a link?

plugin.tt_news.displayList.category_stdWrap{
      wrap =|
      typolink {
        parameter = {$listPID}
        additionalParams = &tx_ttnews[cat]={field:category}
        additionalParams.insertData = 1
      }
    }

$listPID} contains the PID of the page where the tt_news plugin with the 
LIST view is.

Kind regards,
Hauke