diff --git a/server/gameserver/buff.cc b/server/gameserver/buff.cc
index ef95acda..c268a51a 100644
--- a/server/gameserver/buff.cc
+++ b/server/gameserver/buff.cc
@@ -326,7 +326,7 @@ void Buff::ProcSputteringFunc(Bullet* bullet)
              0,
              0,
              nullptr);
-        std::shared_ptr<VirtualBullet> p = std::make_shared<VirtualBullet>();
+        auto p = std::make_shared<VirtualBullet>();
         p->bullet_uniid = bullet_uniid;
         p->weapon_uniid = bullet->weapon_uniid;
         p->skill_meta = bullet->skill_meta;
diff --git a/server/gameserver/types.h b/server/gameserver/types.h
index 7a6a501e..134037dd 100644
--- a/server/gameserver/types.h
+++ b/server/gameserver/types.h
@@ -103,3 +103,9 @@ typedef std::weak_ptr<struct AttrRuducePtr> AttrRuduceHandle;
 typedef std::weak_ptr<struct AttrAbsPtr> AttrAbsHandle;
 typedef std::weak_ptr<struct AttrRatePtr> AttrRateHandle;
 typedef std::weak_ptr<struct AttrDirectPtr> AttrDirectHandle;
+
+namespace a8
+{
+    class Args;
+    typedef std::function<void(const a8::Args*)> CommonCbProcEx;
+}