Apple CEO Tim Cook Watches As Factory Workers Build Mac Pros With Windows Workstations

Apple CEO Tim Cook toured an Austin, TX facility that manufactures the new Mac Pro, and his crew predictably used the visit as a photo op, snapping an image of Cook peering over the shoulder of a worker soldering something and posting it on Twitter.

“Watching the Mac Pro come together in Austin yesterday,thanks to a team loaded with American manufacturing expertise,” reads the Twitter post.

Tim Cook Windows

However, a number of people noticed something humorously off about the photo: The computers in the background appear to be running Windows. Thus, it would seem that Apple is using Windows software to help create its Mac Pro machines.

It’s more of a simple PR gaff than anything else, but it’s still funny any time a company is spotted using a competitor’s product--especially when the CEO of one of those companies is in the shot.