How do I tell my mother than I do NOT want her husband to help me move into college?

He's not paying for anything and we don't need his help to move in because fraternities and sororities will be taking the boxes out of cars and putting them into our rooms for us so we won't have to lift anything to his help will just be frustrating and unwanted. It's my day. I'm moving into a new environment and I don't want him there. I strongly dislike her. How do I convince her to uninvited him? He knows that I seriously dislike him so he won't be surprised! he knows that i won't want him there, what should i do?