Unliving Rage Con Bonus to Undead?

[KnowItAllDM]

In the Ultimate Class Guide, a spell is presented called Unliving Rage, which states:

This spell functions as rage, except it affects only undead creatures and bolsters them with necromantic energy rather than emotion.
Each affected creature gains a +2 profane bonus to Strength and Constitution, a +1 profane bonus on Will saves, and a –2 penalty to AC.
The effect is otherwise identical to a barbarian's rage.

Since Undead have no constitution score, how can they gain a bonus to constitution? Am I missing something here?

[wraithstrike]

It seems this got past editing. I will press the FAQ button so they can fix it.

[Jeff Merola]

It should probably be Charisma instead, since that's what undead use in place of Constitution when needed.

[Ms. Pleiades]

Putting up another FAQ candidate vote. And do you mean "Advanced Class Guide" rather than "Ultimate Class Guide"?

[KnowItAllDM]

Ms. Pleiades wrote:

Putting up another FAQ candidate vote. And do you mean "Advanced Class Guide" rather than "Ultimate Class Guide"?

Yes, Advanced Class Guide. My bad. I'm still waking up, lol.