Remove stamina on Death

[Phemus]

Hello, I'm trying to create a script where if a player dies at level 250 or above because of a monster or a player, he loses stamina. This is my script so far

function onDeath(cid, corpse, killer)
    if getPlayerLevel(cid) > 250 then
        doPlayerSetStamina(cid, getPlayerStamina(cid) - 2550)
    end
    return true
end

I'm putting it on creatures scripts but when i test it, they do not lose anything of stamina.

 

[Phemus]

SOLVED