diff --git a/server/gameserver/hero_agent.cc b/server/gameserver/hero_agent.cc
index cdf3caa7..efafb382 100644
--- a/server/gameserver/hero_agent.cc
+++ b/server/gameserver/hero_agent.cc
@@ -386,6 +386,10 @@ behaviac::EBTStatus HeroAgent::DoHelpAttack(int target_uniid)
                                           target.Get()->GetPos().ToGlmVec3())) {
                      return behaviac::BT_FAILURE;
                  }
+                 float distance = target.Get()->GetPos().Distance2D2(GetOwner()->GetPos());
+                 if (distance > GetAttackRange()) {
+                     return behaviac::BT_FAILURE;
+                 }
                  bool shot_ok = false;
                  glm::vec3 shot_dir = GetOwner()->GetPos().CalcDir(target.Get()->GetPos());;
                  GlmHelper::Normalize(shot_dir);
@@ -393,7 +397,7 @@ behaviac::EBTStatus HeroAgent::DoHelpAttack(int target_uniid)
                  if (bullet_trace_mode_) {
                      GetOwner()->Shot(shot_dir, shot_ok, 0, target.Get()->GetUniId());
                  } else {
-                     GetOwner()->Shot(shot_dir, shot_ok, 0, target.Get()->GetUniId());
+                     GetOwner()->Shot(shot_dir, shot_ok, 0, 0);
                  }
 
                  return behaviac::BT_RUNNING;