Disarming Strike and Crit Damage

[CMantle]

Disarming strike says: “Whenever you score a critical hit with a melee attack, you can disarm your opponent, in addition to the normal damage dealt by the attack.”

Does that mean disarm plus normal *non-crit* damage, or plus normal damage *for a critical hit*

Link to feat here: https://www.d20pfsrd.com/feats/combat-feats/disarming-strike-combat/

[blahpers]

All the damage, crit included.