Bukkit

Hey, I have some problems with tthe spells...

I wanna do 7 damages on my spell like this:

projectile-type: SmallFireBall
projectile-velocity: 0.8
projectile-hit-effect:
cooldown: 5
heal:
direct-heal-amount: 0
aoe-heal-amount: 0
aoe-heal-range: 0
damage:
direct-damage-amount: 7
aoe-damage-amount: 0
aoe-damage-range: 0

The problem is the damages taken are not the damages indicated: I wanna 7 damages, the spell take 5 direct damages + 5 fire damages. 

It is possible to set the real damages? Thanks for your response.