diff --git a/server/gameserver/android.cc b/server/gameserver/android.cc
index 6b1970e..7a1def8 100644
--- a/server/gameserver/android.cc
+++ b/server/gameserver/android.cc
@@ -26,9 +26,9 @@ void Android::Initialize()
 {
     Human::Initialize();
     SetTankInfo(MetaMgr::Instance()->RandTank());
-    tank_meta = MetaMgr::Instance()->GetTank(TankId());
-    if (tank_meta) {
-        skill_meta_ = MetaMgr::Instance()->GetSkill(tank_meta->i->skill_id());
+    tank_meta_ = MetaMgr::Instance()->GetTank(TankId());
+    if (tank_meta_) {
+        skill_meta_ = MetaMgr::Instance()->GetSkill(tank_meta_->i->skill_id());
     }
     GiveEquip();
     MetaData::TankSkin* tank_tank_meta = MetaMgr::Instance()->GetTankSkin(TankId());
@@ -49,8 +49,8 @@ void Android::Update(int delta_time)
 
 void Android::GiveEquip()
 {
-    if (tank_meta) {
-        MetaData::Equip* weapon_meta = MetaMgr::Instance()->GetEquip(tank_meta->i->bullet_id());
+    if (tank_meta_) {
+        MetaData::Equip* weapon_meta = MetaMgr::Instance()->GetEquip(tank_meta_->i->bullet_id());
         if (weapon_meta) {
             weapons[GUN_SLOT1].weapon_idx = GUN_SLOT1;
             weapons[GUN_SLOT1].weapon_id = weapon_meta->i->id();
diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index ee61891..c8ea365 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -1425,21 +1425,21 @@ float* Human::GetAbilityById(int attr_id)
 void Human::RecalcBaseAttr()
 {
     ability = HumanAbility();
-    if (tank_meta) {
-        for (auto& pair : tank_meta->attr_init) {
+    if (tank_meta_) {
+        for (auto& pair : tank_meta_->attr_init) {
             float* p_attr = GetAbilityById(pair.first);
             if (p_attr) {
                 *p_attr += pair.second;
             }
         }
-        for (auto& pair : tank_meta->attr_up) {
+        for (auto& pair : tank_meta_->attr_up) {
             float* p_attr = GetAbilityById(pair.first);
             if (p_attr) {
                 *p_attr += (TankLv() / std::get<1>(pair.second)) * std::get<0>(pair.second);
             }
         }
     }
-    if (driver_meta && tank_meta && driver_meta->i->g_type() == tank_meta->i->type()) {
+    if (driver_meta && tank_meta_ && driver_meta->i->g_type() == tank_meta_->i->type()) {
         for (auto& pair : driver_meta->attr_up) {
             float* p_attr = GetAbilityById(pair.first);
             if (p_attr) {
diff --git a/server/gameserver/human.h b/server/gameserver/human.h
index 1d057fb..733f5b8 100644
--- a/server/gameserver/human.h
+++ b/server/gameserver/human.h
@@ -39,7 +39,6 @@ class Human : public Entity
     std::string team_uuid;
     int account_registertime = 0;
     MetaData::Player* meta = nullptr;
-    MetaData::Tank* tank_meta = nullptr;
     MetaData::Driver* driver_meta = nullptr;
     HumanAbility ability;
     int born_point = 0;
@@ -236,6 +235,7 @@ protected:
     Human* follow_target_ = nullptr;
     bool follow_synced_active_player = false;
     MetaData::Skill* skill_meta_ = nullptr;
+    MetaData::Tank* tank_meta_ = nullptr;
 
 private:
     CircleCollider* self_collider_ = nullptr;
diff --git a/server/gameserver/player.cc b/server/gameserver/player.cc
index b995ebc..125ce7d 100644
--- a/server/gameserver/player.cc
+++ b/server/gameserver/player.cc
@@ -30,10 +30,10 @@ Player::~Player()
 void Player::Initialize()
 {
     Human::Initialize();
-    tank_meta = MetaMgr::Instance()->GetTank(TankId());
-    if (tank_meta) {
-        skill_meta_ = MetaMgr::Instance()->GetSkill(tank_meta->i->skill_id());
-        MetaData::Equip* weapon_meta = MetaMgr::Instance()->GetEquip(tank_meta->i->bullet_id());
+    tank_meta_ = MetaMgr::Instance()->GetTank(TankId());
+    if (tank_meta_) {
+        skill_meta_ = MetaMgr::Instance()->GetSkill(tank_meta_->i->skill_id());
+        MetaData::Equip* weapon_meta = MetaMgr::Instance()->GetEquip(tank_meta_->i->bullet_id());
         if (weapon_meta) {
             weapons[GUN_SLOT1].weapon_idx = GUN_SLOT1;
             weapons[GUN_SLOT1].weapon_id = weapon_meta->i->id();