BEHEMOTH PATH DOESN'T GIVE PROPER HEALTH BOOST

When I built a volibear support with the behemoth path (resolve + precision), it didn't show me the proper scaling health boost. When I checked it, it just stated that I was only getting +15 health at lvl 18, instead of 135. I did check, and it did give me the proper amount of health, so the tooltip display is the only thing wrong.