It probably should. Guess it depends on how wide of a crack it is. I've repaired cracks up to ~6" though no problem. Might run into problems if it's wider than that as the patch can "bubble" outwards and become more noticeable. Higher chance of happening if it's an exterior wall that is prone to temperature changes than an interior wall. Can also apply in stages and let each small patch reduce the hole size and properly cure versus one big glob of compound trying to cure. If the visual doesn't bother, then should be ok as an interim fix i believe