If you’ve ever checked into your hotel room only to find that the air conditioning (AC) is at a set temperature that you’re unable to change, you know what a bummer it can be. After all, trying to get a good night’s sleep in a bed that’s not your own is tough enough. Throw in a hot room that’s uncomfortable and stuff, and it’s a recipe for a sleepless night. While many hotels are controlling the room temperature in an effort to conserve energy, it certainly isn’t ideal for guests.

But thanks to a simple hack video shared by TikTok creator @carlosmunn, there’s now an easy fix for an AC unit that’s “stuck” and out of your control. While it’s tough to tell whether he made this video himself or reposted it, so many people will appreciate this information. With 4.1 million views, the trick demonstrated in the clip is sure to be a game-changer for people who like their room on the cooler side.

Awesome! Who knew that pushing those two arrow buttons was the key to resetting the whole thing? We’re totally gonna try this the next time we’re in this predicament. Plenty of TikTok users are so thankful they stumbled upon this hack. @CamuR said, “I’m saving this video for the future hotel visit, thanks a lot 👍🏼.” Another commenter, @Steve Deschermeier added, “I’m a service technician, and I thank you for showing people this, especially when your t-stat is locked out at like 72 degrees.” And @Justin Schultz is keeping this trick in his back pocket, saying, “I’ve never had a problem adjusting the heat/ac in any hotel I’ve ever been to. But I’m saving this video just in case!”

So there you have it. You never know, watching this clip just might save you from having a restless night in a hotel somewhere down the road.