diff --git a/zone/attack.cpp b/zone/attack.cpp
index 165a6dfd7..8371d00fc 100644
--- a/zone/attack.cpp
+++ b/zone/attack.cpp
@@ -5212,8 +5212,11 @@ bool Mob::TryFinishingBlow(Mob *defender, int64 &damage)
 			FB_Level = itembonuses.FinishingBlowLvl[SBIndex::FINISHING_EFFECT_LEVEL_MAX];
 
 		// modern AA description says rank 1 (500) is 50% chance
-		int ProcChance =
-				aabonuses.FinishingBlow[SBIndex::FINISHING_EFFECT_PROC_CHANCE] + spellbonuses.FinishingBlow[SBIndex::FINISHING_EFFECT_PROC_CHANCE] + spellbonuses.FinishingBlow[SBIndex::FINISHING_EFFECT_PROC_CHANCE];
+		int ProcChance = (
+			aabonuses.FinishingBlow[SBIndex::FINISHING_EFFECT_PROC_CHANCE] +
+			itembonuses.FinishingBlow[SBIndex::FINISHING_EFFECT_PROC_CHANCE] +
+			spellbonuses.FinishingBlow[SBIndex::FINISHING_EFFECT_PROC_CHANCE]
+		);
 
 		if (FB_Level && FB_Dmg && (defender->GetLevel() <= FB_Level) &&
 			(ProcChance >= zone->random.Int(1, 1000))) {