Calculating Save DCs of Spell-Like Abilities

[Enix18]

What ability score do you use to calculate the save DCs for spell-like abilities when none is specified? I thought I remembered 3E defaulting to CON or CHA, but I can't find anything like that anywhere in the Pathfinder core rulebook or the SRD.

[Abadar]

It's Charisma.

http://paizo.com/prd/monsters/universalMonsterRules.html

Spell-Like Abilities (Sp) wrote:

If no caster level is specified, the caster level is equal to the creature's Hit Dice. The saving throw (if any) against a spell-like ability is 10 + the level of the spell the ability resembles or duplicates + the creature's Charisma modifier.

[Enix18]

Ah, "monster rules" would be the place to look, wouldn't it.

Thank you for the swift reply, my friend.