Lenovo has issued a recall for its fifth-generation ThinkPad X1 Carbon laptop over concerns of a possible fire hazard. The recall affects roughly 78,000 unit in the U.S., as well as an additional 5,000 in Canada, that were manufactured from December 2016 and October 2017.

The root of the issue is an unfastened screw in some ThinkPad X1 Carbon laptops that could damage the laptop’s battery, resulting in overheating and a possible fire hazard. No issues have been reported in the U.S., but Lenovo stated three issues arose globally that resulted in damage to the laptop.

Lenovo is offering a free service inspection for possible affected customers and is asking them to go through its site to determine if a computer is affected. The process is pretty simple: it determines the model and the month and year it was manufactured through its serial number.

Through its site, Lenovo also sets up parameters to move forward if a computer is affected.

If you own a fifth generation ThinkPad X1 Carbon laptop, its best you go through the process to make sure you are not affected. Being stuck with an affected Lenovo laptop could prove to be very serious.