How do i fix my Nissan Micra S 2003 problem with right side rear indicator?

My Nissan Micra S 2003 model has an intermittent fault with the right hand side rear indicator light, it flashes properly most of the time , then now and again when i use the indicator the speed of the ticks doubles and the rear indicator doesnt show, the side one still does though. Could it be a loose connection somewhere?