Alistar Ult (Not really bug but needs fix)

Not sure if it was only for me, but from what I've seen the ultimate tool-tip doesn't mention the % damage reduction (50%, 60%, 70%) whenever you can rank it up. I remember the nerf clearly so it doesn't matter much to me, but it would be nice if they added it in. Currently only CD and the AD increase appear on the level up skill tool-tip. TY!