Not to the person who made it because he knows it's a repost. I just don't want the people who saw this to think of it as OC. It's happened to me before. Nothing against the meme or the user.
Why would you care what other people think about a post? And maybe more to the point, why on earth would anyone assume that content they see on a meme site is original? That isn't really the point of making memes.