Scoreboard-health won't work with potion.healthBoost

The scoreboard-objective "health" won't work with the new healthBoost-Effect.
It show 20 when i'm at 60 heart's.
And if i get damage the score goes down but i'm still over 20 heart's.
Please fix it, i need it for a ADV-Map.
Sorry for my bad english

//EDIT
I just saw that this 20 heart's showing the "percentage" of the health.
In my case 60 heart's = 20 health, 30 heart's = 15 health.
But i still dont like it, so please change it