Adding random level of enchantment to armor not working.

[Darth1013]

set helmet slot of player to helmet of protection (random integer between 1 and 4)

This skript is not working, its because of the random integer part, how do i fix this?

 

[iamsif]

set {_level} to a random integer beetween 1 and 4
enchant helmet slot of player with protection {_level}