Google Docs Link to PDF

Q: I'm working with Google Docs today... and I have to link to a PDF (within my Docs) from a Word document (also within my Docs). I tried to insert an hyperlink. And google provides me an option to insert Document from my own library. But what surprises me is that, it does not list the PDFs. Just the "Documents".!!! 

If anybody can help, please post your answers as comments to this post. Thanks!