extra button hole hole, help!

[Kilgore_Trout]

So I've been using amy's button hole method, which is a great easy to work method by the way, but I always end up with a small hole just outside the button hole. The hole appears when I knit the row on top of the button hole. I've noticed this in another method as well. I try my darndest to knit real tight at the corners but the hole is persistent. Anyone have a solution?

[Ingrid]

Most buttonhole directions I've read say to reinforce the ends of the buttonholes with yarn.