Stupid puzzle!!

So I finished my 1500 pieces jigsaw puzzle, only to find at the end that it's missing a piece. MISSING A PIECE. Nothing is more frustrating than building up a nice big rather complex puzzle (lots of green and water reflections) and then find out it will never be complete because it came with one piece less. And it wasn't my fault! I didn't drop any pieces, the place where I worked on it is pretty clear and there aren't many places a piece might have fallen and hid. No, this is not my fault!!

I really hope the next one doesn't have this problem =/