Have you been frustrated trying to figure out how to stop your iPhone’s screen from rotating? Wouldn’t you think that the setting to lock the screen orientation would be obvious? But it’s so not obvious. In fact, the trick for how to lock portrait orientation, which is how it is referred to on the iPhone, is anything but obvious. Here’s how to lock portrait orientation on your iPhone so that the screen stops spinning like a top whenever you tilt your phone.

If you get frustrated when your iPhone screen switches from the upright position (known as “portrait” view) to the horizontal orientation (known as “landscape” view) at the slightest change swivel of your wrist, you may have gone searching for a way to lock the orientation so that doesn’t happen. On the iPad, there is an external button to lock the orientation of the screen, but on the iPhone that same button serves the mute function. Here’s how to lock your iPhone screen so that it is locked in the portrait orientation.