TE Stick Diamond Gate - How do I fix this?

So my TE stick came with a diamond shaped gate. That is, the farthest directions are up, down, left, and right. I don’t know anything about sticks, but I figure it’s just an incorrectly installed square gate rotated a bit, so I open up the stick and take off the clear plastic gate, but there’s no way to rotate this thing so the brackets align to get a square rather than a diamond. Is it possible I have the wrong part?

This will help:


Thanks a lot! So simple once you see it ;P.