Clips for Laptop Stand

I liked the Laptop Stand by JannesV (https://www.thingiverse.com/thing:2458297) but my 15" MacBook Pro kept tipping-over the stand so I needed some clips at the bottom to hold the laptop on the stand.

I was too lazy to reprint the whole stand so I designed these clips to slide over the existing stand and provide better leverage for the laptop while open.