Howl of the Westwind Helmet Question

Can anyone tell me how this Item works?
Have a Weapon with 109 Melee-Lightning Damage.
Tested with Gathering Storm and Swipe (100% Damage converted to lightning) but it does nothing to the Wolves.
Since there is no View for Flat Lightning Damge Stats for the Minions or myself i´m confused…
how can i give my Wolves the additional Melee-Damage?
Or do they just scale terrible from Melee Lightning Damage?