[TYPO3] tt_news: archiveTypoLink.addParams doesn't work

[Cray Flatline]

In my lstest news list I try to create archieve link and add to it some 
parameters. Below where is example of my code

temp.sovblock {
   categorySelection = 9
   archiveTypoLink.parameter = 34
   archiveTypoLink.addParams = '&catvar=9'
   singlePid = 34
}

lib.sovblock < temp.sovblock


but after it link is /index.php?id=34 but without any catvar=9
can anybody help me with it? I really need it.

Please help me.

--
Best regards,
Cray Flatline