It won't matter.
You can always twist any pair of corners, one clockwise, the other anticlockwise, so you can move the misalignment to any corner you want.
The only thing that matters is that you twist the corner in the opposite direction from the initial, unwanted twist; otherwise you end up in the other unsolvable position. (If you twist a corner piece on a solved cube, a corner piece has three possible orientations, only one of them is solvable.)
Solving the rest of the (corners of the) cube will easily tell you which direction you should twist, which is why @athin recommends it.