@Bonnibel,
OK, this is a situation in which I can see adding it -- if you basically have a job lined up, have a very sparse resume, and the person who will be hiring you is advising you to just get more STUFF on your resume to make things look a little better to higher-ups who might give it a cursory glance.
I don't really have enough info to know if that's the situation, though. (Is it? And if not, what is the situation?)