Lua adding maxhealth and maxmana to an item

[RazorBlade]

I'm having trouble with a script. It doesn't add health/mana when it's told to.

local choice2 = math.random(1, 2)
				if (choice2 == 1) then
					maxhp = math.random(250, 500)
					hp = (hp + maxhp)
					doItemSetAttribute(itemEx.uid, 'maxhealthpoints', hp)
					points2 = (jewel2Point + 1)
					doItemSetAttribute(itemEx.uid, "jewel2", points2)
					doSendAnimatedText(toPosition, "Upgraded!", TEXTCOLOR_GREEN)
					doSendMagicEffect(toPosition, CONST_ME_MAGIC_GREEN)

It's supposed to add a random amount of maxhealth or maxmana between 250 and 500 (code above is just the maxhealth part) There are no console errors and it sends the magic effect so I know it gets past adding the health, it just doesn't add it. what's wrong?
I'm using TFS 0.4, some rev in the 8.62 range.

 

[RazorBlade]

Bump U_U

 

[RazorBlade]

Bumpitlouder

 

[RazorBlade]

BUmpItY because I can D: