diff --git a/server/gameserver/gungrasp.cc b/server/gameserver/gungrasp.cc
index 44960d13..362da8cb 100644
--- a/server/gameserver/gungrasp.cc
+++ b/server/gameserver/gungrasp.cc
@@ -114,24 +114,30 @@ void GunGrasp::InstallTriggers()
 
 void GunGrasp::ProcHit(GraspBuff* buff)
 {
-    owner_->GetTrigger()->AddListener
+    event_listeners_.push_back
         (
-         kBulletHitEvent,
-         [this, buff] (const a8::Args& args)
-         {
-             buff->ProcSignet(this, 1);
-         });
+         owner_->GetTrigger()->AddListener
+         (
+          kBulletHitEvent,
+          [this, buff] (const a8::Args& args)
+          {
+              buff->ProcSignet(this, 1);
+          })
+         );
 }
 
 void GunGrasp::ProcKill(GraspBuff* buff)
 {
-    owner_->GetTrigger()->AddListener
+    event_listeners_.push_back
         (
-         kKillEvent,
-         [this, buff] (const a8::Args& args)
-         {
-             buff->ProcSignet(this, 1);
-         });
+         owner_->GetTrigger()->AddListener
+         (
+          kKillEvent,
+          [this, buff] (const a8::Args& args)
+          {
+              buff->ProcSignet(this, 1);
+          })
+         );
 }
 
 void GunGrasp::ProcTakeOn(GraspBuff* buff)
@@ -146,13 +152,16 @@ void GunGrasp::ProcCond(GraspBuff* buff)
 
 void GunGrasp::ProcHitAndEnd(GraspBuff* buff)
 {
-    owner_->GetTrigger()->AddListener
+    event_listeners_.push_back
         (
-         kBulletHitEvent,
-         [this, buff] (const a8::Args& args)
-         {
-             buff->ProcSignet(this, 1);
-         });
+         owner_->GetTrigger()->AddListener
+         (
+          kBulletHitEvent,
+          [this, buff] (const a8::Args& args)
+          {
+              buff->ProcSignet(this, 1);
+          })
+         );
 }
 
 void GunGrasp::AddSignet(int id, int count)
diff --git a/server/gameserver/gungrasp.h b/server/gameserver/gungrasp.h
index 4b75eea1..853bb7ee 100644
--- a/server/gameserver/gungrasp.h
+++ b/server/gameserver/gungrasp.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#include "trigger.h"
+
 struct GraspBuff;
 class Creature;
 class GunGrasp
@@ -28,6 +30,7 @@ class GunGrasp
  private:
     Creature* owner_ = nullptr;
     int hero_lv_ = 0;
+    std::vector<std::weak_ptr<EventHandlerPtr>> event_listeners_;
     std::map<int, int> signet_hash_;
     std::array<list_head, (int)GraspBuffTrigger_e::kEnd> grasp_triggers_ = {};
 };