Jib track pulling off

On my 16 i have the old jib tracks. One of the tracks started pulling out of the inner most side. What is the best method to fix this?

I was thinking of just getting a new screw that will thread tightly into the plastic stop at the end. Will that temporally hold it down. I just need it to last until the middle of December when i go home for Christmas and can properly rivet it down.

Thanks for the help