Literal tab character in XML input to FrameMaker

I am pretty sure I asked this before but I can't find the thread. I am using XSLT to transform XML to a FrameMaker table on import. I want a literal tab character at the end of the cells in one of the columns. Here is a snippet of my XSLT:

When the file opens in FrameMaker, I don't get the tab character:

If I substitute any other character for testing, it comes over. Any help will be appreciated.