diff --git a/TombEngine/Objects/Generic/puzzles_keys.cpp b/TombEngine/Objects/Generic/puzzles_keys.cpp
index 0a833ae81..47c12cb43 100644
--- a/TombEngine/Objects/Generic/puzzles_keys.cpp
+++ b/TombEngine/Objects/Generic/puzzles_keys.cpp
@@ -230,6 +230,10 @@ void PuzzleDoneCollision(short itemNumber, ItemInfo* laraItem, CollisionInfo* co
 
 	// NOTE: Only execute code below if Triggertype is switch trigger.
 	auto triggerIndex = GetTriggerIndex(&receptacleItem);
+
+	if (triggerIndex == 0)
+		return;
+
 	int triggerType = (*(triggerIndex++) >> 8) & 0x3F;
 
 	if (triggerType != TRIGGER_TYPES::SWITCH)
@@ -326,6 +330,10 @@ void PuzzleDoneCollision(short itemNumber, ItemInfo* laraItem, CollisionInfo* co
 void PuzzleDone(ItemInfo* item, short itemNumber)
 {
 	auto triggerIndex = GetTriggerIndex(item);
+
+	if (triggerIndex == 0)
+		return;
+
 	short triggerType = (*(triggerIndex++) >> 8) & 0x3F;
 
 	if (triggerType == TRIGGER_TYPES::SWITCH)
@@ -437,6 +445,10 @@ void KeyHoleCollision(short itemNumber, ItemInfo* laraItem, CollisionInfo* coll)
 	auto* player = GetLaraInfo(laraItem);
 
 	short* triggerIndexPtr = GetTriggerIndex(keyHoleItem);
+
+	if (triggerIndexPtr == 0)
+		return;
+
 	short triggerType = (*(triggerIndexPtr++) >> 8) & 0x3F;
 
 	bool isActionReady = (IsHeld(In::Action) || g_Gui.GetInventoryItemChosen() != NO_ITEM);