Yeah there should be a stopper on the cable these often break, best bet would be to fit a brand new cable, they arent dear would solve your problem.
Thinking about it think the pedal has one as well..... might be worth checking, change the cable first, if that doesnt cure it then either visit a scrappy or fudge something up for the pedal stopper, will try and have a look at mine see if there is anything on the pedal.