word exceeds table cell width. How to force the senten

Hi Experts,

I have a problem. I have a table cell with a certain width, and in
that cell i have some text. If the sentence consist of one long word
without space it exceeds the cell-width.

How do I insert a hyphen and then force the word to break to the next line?
the xsl-fo attribute: wrap-option="wrap" but it doesn't help...

on beforehand thanks for helping me out here

/Christian