Squeaky Drum Brakes

Ever since I ran over my parking brake cable (don't ask), when I let off the brakes something in my left rear drum squeaks. It's one of the moving parts in there and it only does it as I am letting off the brakes. When I put on the new parking brake cable I checked everything out back there and nothing looked to be bent or damaged and the brakes work just fine.

Any thoughts on this?