HOW TO CHANGE THE TEAM VIEWER ICON ON UBUNTU LEFT SIDE OF MONITOR

This 'newbie'  needs to know:

I just downloaded Team Viewer v.13

On the Left side of my Monitor I have several Icons to click on to Open Prorgrams i.e, Software Center, Search, et al.

The ICON that opened for Team Viewer just has a Question Marrk.

I would like it to show TV 

Thank you.  rm