[quote="Jonathan"]Unfortunately you cannot specifically target any particular part of your chest. The way that it grows is down to genetics, so I think you are just going to have to get used to it. Either that, or pack on a lot of weight, and the extra mass will mean extra mass on all parts of your chest.
That's is only half true, different exercises activate the sternal and clavicular head of the pecs to different degrees, with stuff like incline bench activating the clavicular more.
So theoretically doing more incline presses could help the problem, but most likely what you really need is to put on more mass overall.