Does anyone know if you are supposed to net a partnership loss against guaranteed payments when calculating taxable compensation for purposes of Roth contribution limits?

Client is active in a partnership with a net loss and guaranteed payments (loss greater than guaranteed payments). He thought he could still contribute to his Roth on the basis of the guaranteed payments and didn't have to net with the partnership loss. I've found information that says that you don't have to net a self employment loss against other earned income, but can't find anything about netting it against guaranteed payments from the same K-1. I'm thinking he can't but wanted to confirm. Anyone know?