Rating > Missing label

me again...Again it's maybe me who's wrong and maybe i didn't install something correctly but i have a small issue to report for the LIKE feature

when I'm in "collaboration" , I select the social workspace I just created and see my Document library. I have the "like" feature available here, but it's written "!label.gadget.library.comment!" + heart..
So it's working and you easily guess it with the small hear besides, but not sure it's supposed to be written like that...

Attached a screen capture