Macbook pro case is two years old and not fitting?

I have the newest Macbook pro with the 15" screen. I found a case that was two years old on sale and got it. It's made for a macbook pro with a 15" screen. It doesn't fit though? There's like 1/4 inch gap so the case won't snap on or anything.

I know the case is older so it's made for a different one but 15" should always be the same, right?

Anonymous2014-11-28T15:54:46Z

Why should it? If the machine is thicker in design the screen size makes no difference.