diff --git a/server/gameserver/incubator.cc b/server/gameserver/incubator.cc
index 84d93a7c..c6509aab 100644
--- a/server/gameserver/incubator.cc
+++ b/server/gameserver/incubator.cc
@@ -671,52 +671,52 @@ void Incubator::StartNewBattleMode()
     if (!selected_player) {
         return;
     }
-    std::vector<Human*> invisable_humans;
-    std::vector<Human*> invisable_teammates;
+    auto invisable_humans = std::make_shared<std::vector<Human*>>();
+    auto invisable_teammates = std::make_shared<std::vector<Human*>>();
     room->xtimer.SetIntervalWpEx
         (
          SERVER_FRAME_RATE * (3 + rand() % 2),
-         [this, selected_player, &invisable_humans, &invisable_teammates] (int event, const a8::Args* args)
+         [this, selected_player, invisable_humans, invisable_teammates] (int event, const a8::Args* args)
          {
              if (a8::TIMER_EXEC_EVENT == event) {
                  if (room->IsGameOver()) {
                      return;
                  }
-                 invisable_humans.clear();
-                 invisable_teammates.clear();
+                 invisable_humans->clear();
+                 invisable_teammates->clear();
                  room->TraverseAliveHumanList
                      (
-                      [this, selected_player, &invisable_humans, &invisable_teammates] (Human* hum) -> bool
+                      [this, selected_player, invisable_humans, invisable_teammates] (Human* hum) -> bool
                       {
                           if (hum == selected_player) {
                               return true;
                           }
                           if (!CanSee(hum, selected_player)) {
                               if (hum->GetTeam() == selected_player->GetTeam()) {
-                                  invisable_teammates.push_back(hum);
+                                  invisable_teammates->push_back(hum);
                               } else {
-                                  invisable_humans.push_back(hum);
+                                  invisable_humans->push_back(hum);
                               }
                           }
                           return true;
                       });
-                 if (invisable_humans.size() > 0) {
-                     std::shuffle(invisable_humans.begin(),
-                                  invisable_humans.end(),
+                 if (invisable_humans->size() > 0) {
+                     std::shuffle(invisable_humans->begin(),
+                                  invisable_humans->end(),
                                   std::default_random_engine(a8::XGetTickCount()));
                      Human *killer = nullptr;
-                     Human *target = invisable_humans.at(0);
-                     for (size_t i = 0; i < invisable_humans.size(); ++i) {
-                         if (invisable_humans.at(i)->GetTeam() != target->GetTeam()) {
-                             killer = invisable_humans.at(i);
+                     Human *target = invisable_humans->at(0);
+                     for (size_t i = 0; i < invisable_humans->size(); ++i) {
+                         if (invisable_humans->at(i)->GetTeam() != target->GetTeam()) {
+                             killer = invisable_humans->at(i);
                              break;
                          }
                      }
-                     if (!killer && !invisable_teammates.empty()) {
-                         std::shuffle(invisable_teammates.begin(),
-                                      invisable_teammates.end(),
+                     if (!killer && !invisable_teammates->empty()) {
+                         std::shuffle(invisable_teammates->begin(),
+                                      invisable_teammates->end(),
                                       std::default_random_engine(a8::XGetTickCount()));
-                         killer = invisable_teammates.at(0);
+                         killer = invisable_teammates->at(0);
                      }
                      if (killer) {
                          target->BeKill(killer->GetUniId(),