Late last month Amazon released a new set of tools for developers called Lumberjack. Like most code for use in the development of apps and games, Amazon included a terms of use agreement with the release.

Because Amazon doesn’t want to open itself up to unnecessary risk of liability, it restricts the code from being used for medical equipment, driverless cars, airplanes, air traffic control or nuclear facilities. Basically, things that could cause a lot of problems if the source code failed.

In addition to these civilian uses, the Lumberjack terms of use go on to prohibit the development of apps for manned spacecraft or for military use in connection with live combat.

Being the forward thinkers that they are at Amazon, however, there is an escape clause that would allow developers to use Lumberjack for any of these purposes. Reading through the fine print shows that app developers can basically do whatever they want if the world is overrun by zombies.

“This restriction will not apply in the event of the occurrence (certified by the United States Centers for Disease Control or successor body) of a widespread viral infection transmitted via bites or contact with bodily fluids that causes human corpses to reanimate and seek to consume living human flesh, blood, brain or nerve tissue and is likely to result in the fall of organized civilization,” read the Amazon terms of use.

That’s right folks; Amazon has a zombie apocalypse clause.