Is there something I can spray on my furniture to deter my dogs from peeing on it?

I have 2 male dogs and the oldest is peeing on my furniture. He isn't "peeing" because he has to go, he is marking his territory. He has been fixed and I am ready to strangle him, not really. But I can keep replacing furniture. I know dogs are directed by scent, so is there a scent I can spray on my furniture that will deter him from spraying? Please help!