diff --git a/src/Classes/Item.lua b/src/Classes/Item.lua
index ef2c2603b9c..9dca1e2d625 100644
--- a/src/Classes/Item.lua
+++ b/src/Classes/Item.lua
@@ -2112,7 +2112,7 @@ function ItemClass:BuildModListForSlotNum(baseList, slotNum)
 		end
 
 		if self.base.armour.BlockChance then
-			armourData.BlockChance = m_floor((self.base.armour.BlockChance * (1 + calcLocal(modList, "BlockChance", "INC", 0) / 100) + calcLocal(modList, "BlockChance", "BASE", 0)))
+			armourData.BlockChance = m_floor((self.base.armour.BlockChance + calcLocal(modList, "BlockChance", "BASE", 0)) * (1 + calcLocal(modList, "BlockChance", "INC", 0) / 100))
 		end
 		if self.base.armour.MovementPenalty then
 			modList:NewMod("MovementSpeed", "INC", -self.base.armour.MovementPenalty, self.modSource, { type = "Condition", var = "IgnoreMovementPenalties", neg = true })