Unity iPhone Icons aren't rounded

I created iphone icon using photoshop. When I put this into the Player settings it looks like this:

http://www.freeimagehosting.net/uploads/704b554c01.png

But after i build the project it looks like this in xcode:

http://www.freeimagehosting.net/uploads/13ca6f33be.png

How can I fix this?

You don't need to round your icon. xCode will automatically round the edges for you, and add the bevel associated with most apps.