I can't really tell from the picture where the leak is and if it's not leaking inside the car, it should be a problem, but you could try sealing it with clear silicone. It shouldn't be very noticeable and will plug the leak.
Hatch Nation #13 : Rally Revolution #13 : ROTM Jan '13
It's Bryan, not Brian
RSVT-170 Build in Progress
Derusting Rusty Build in Progress