DC for save against massive damage?

[Eternalknight]

I may be missing something, but under the Massive Damage rules in the DMG it says if you suffer massive damage, you must make a Fort save, but then doesn't list the DC. Any ideas?

 

[hong]

DC 15, same as it's always been.

 

[Eternalknight]

DC 15, same as it's always been.

Thanks mate.