Can I use regular vanilla soy milk instead of unsweetened soy milk for this soup recipe?

I am making corn and potatoes chowder from vegan planet's author.....Robin Robertson from the cookbook 1,000 vegan recipes.....It calls for unsweetened soy milk but I do not want to go out and get some......so can I just use vanilla regular soy milk to replace it???? I like sweetness.....but any help is great! Thanks!