diff --git a/zone/spell_effects.cpp b/zone/spell_effects.cpp
index fc9cd51a3..6a50ab142 100644
--- a/zone/spell_effects.cpp
+++ b/zone/spell_effects.cpp
@@ -5963,7 +5963,8 @@ bool Mob::TryDeathSave() {
 
 bool Mob::AffectedBySpellExcludingSlot(int slot, int effect)
 {
-	for (int i = 0; i <= EFFECT_COUNT; i++)
+	int buff_count = GetMaxTotalSlots();
+	for (int i = 0; i < buff_count; i++)
 	{
 		if (i == slot)
 			continue;