Old work boxes - hole too big
I'm putting a bunch of old work boxes into plaster. Being plaster, the holes sometimes end up a bit larger than intended. How should I patch these holes so the 'ears' on the old work boxes can grab on correctly? Generally this isn't very much, just 1/4 to 2 inches too big. If it was a bigger patch, I'd know what to do, but usually for a patch that small I'd just put a blowout patch in and that doesn't seem like it would provide enough strength for holding a box up.