no title source visible when mapping node

hello, first I will try to explain my 'configuration':

I am using xpath parser (for feeds)
one of the available fiels in 'settings for xpath parser' is "title",
for the Xpath query to run I used: "title"

when mapping for node processor title is not available as a source
it is available as a target.

where or what should i look into to get the title available as a source??