clutch slave help!

when i was pulling off the tranny it snatched on that little rubber piece on the clutch slave and it came off with a little rod in the rubber. can i just put the rubber housing back on the slave, or do i have to get a new slave?
http://images.andale.com/f2/129/124/1354644/1089203139394_CLUTCH_SLAVE_HONDA1.jpg