It's fine. It's an adjuct for body and mouthfeel, and can be added anytime in the boil...or can be added even along with the priming sugar if you forget, or added into the primary or secondary as long as you boiled it up to sanitize it.
Like my snazzy new avatar? Get Sons of Zymurgy swag, here,
and brew with the best.
Revvy's one of the cool reverends. He has a Harley and a t-shirt that says on the back "If you can read this, the bitch was Raptured. - Madman
I gotta tell ya, just between us girls, that Revvy is HOT. Very tall, gorgeous grey hair and a terrific smile. He's very good looking in person, with a charismatic personality... he drives like a ****ing maniac! - YooperBrew