Dog training problem of a different sort...?

My dogs may not be the best behaved lot around, but they do listen to me. I say "Get in the pen!" and they get in the pen. My problem is my husband. They won't listen to him at all. He'll say "Go on, get in the pen" and they look at him and run off. I know the issue is the husband. How do I get him to show some dominance to them? They think he's around to pass out treats and love.