I don't really understand your question. Do you mean because you will be taking in 5g more carbs, that will leave less room for protein? 5g of carbs isn't very much calorically... we're looking at 20 extra calories! You don't need to decrease anything, just add some more veggies, or more cheese, berries, or nuts.

Have fun with OWL... it's good to learn how to make this way of eating workable for you!