diff --git a/server/gameserver/zombiemode.ai.cc b/server/gameserver/zombiemode.ai.cc
index 4959e46..a61a8c4 100644
--- a/server/gameserver/zombiemode.ai.cc
+++ b/server/gameserver/zombiemode.ai.cc
@@ -183,7 +183,8 @@ void ZombieModeAI::UpdateAttack()
         ChangeToState(ZSE_Thinking);
         return;
     }
-    if (node_->exec_frame_num > SERVER_FRAME_RATE * 8) {
+    if (node_->exec_frame_num > SERVER_FRAME_RATE * 8 ||
+        myself->GetRace() == node_->target->GetRace()) {
         ChangeToState(ZSE_Thinking);
         return;
     }