Convoction / automation question

so i bought this wand.

Item Class: Wands
Rarity: Rare
Miracle Needle
Convening Wand
--------
Wand
Quality: +20% (augmented)
Physical Damage: 30-56 (augmented)
Critical Strike Chance: 8.00%
Attacks per Second: 1.50
--------
Requirements:
Level: 50
Int: 183
--------
Sockets: B-B-B
--------
Item Level: 78
--------
Minions deal 24% increased Damage (implicit)
--------
Grants Level 1 Convocation Skill
12% increased Lightning Damage
+1 to Level of all Minion Skill Gems
Minions have 36% increased maximum Life
Minions deal 35% increased Damage
Minions have +14% to Critical Strike Multiplier
29% increased Damage over Time (crafted)


Note that it has the convocation skill.. but when i add automation to it. convocation isn't affected by it. is this a bug ?
Usually skills in items are affected by the support gems right ?

Or am i missing something here ?