diff --git a/eos/effects/shipbonusshieldboostermb1a.py b/eos/effects/shipbonusshieldboostermb1a.py
index 708bb712e..10c8f3c72 100644
--- a/eos/effects/shipbonusshieldboostermb1a.py
+++ b/eos/effects/shipbonusshieldboostermb1a.py
@@ -4,5 +4,5 @@
 # Ship: Maelstrom
 type = "passive"
 def handler(fit, ship, context):
-    fit.modules.filteredItemBoost(lambda mod: mod.item.group.name == "Shield Booster",
+    fit.modules.filteredItemBoost(lambda mod: mod.item.requiresSkill("Shield Operation"),
                                   "shieldBonus", ship.getModifiedItemAttr("shipBonusMB"), skill="Minmatar Battleship")