Unfortunately this is something that has been broken for awhile now affecting multiple companions. See existing threads below:
http://www.swtor.com/community/showthread.php?t=883001
http://www.swtor.com/community/showthread.php?t=882591
http://www.swtor.com/community/showthread.php?t=881513
http://www.swtor.com/community/showthread.php?t=842654
http://www.swtor.com/community/showthread.php?t=876963
http://www.swtor.com/community/showthread.php?t=878321
As of right now there is no official response yet. This was supposed to be fixed in 4.1 patch but as per the above it's still having issues. Any official updates on this issue would appear in the Dev Tracker here
