diff --git a/src/server/game/AI/CoreAI/GuardAI.cpp b/src/server/game/AI/CoreAI/GuardAI.cpp
index 86c6fc1f0bcb16..4ba087cf807805 100644
--- a/src/server/game/AI/CoreAI/GuardAI.cpp
+++ b/src/server/game/AI/CoreAI/GuardAI.cpp
@@ -60,6 +60,9 @@ void GuardAI::EnterEvadeMode(EvadeReason /*why*/)
 
 void GuardAI::JustDied(Unit* killer)
 {
+    if (!killer)
+        return;
+
     if (Player* player = killer->GetCharmerOrOwnerPlayerOrPlayerItself())
         me->SendZoneUnderAttackMessage(player);
 }