Replaced mutex related code in Common.h

1 files changed, 2 insertions, 2 deletions

diff --git a/src/server/game/Maps/MapInstanced.cpp b/src/server/game/Maps/MapInstanced.cpp
index e914a5c3eee..498c669ba01 100644
--- a/src/server/game/Maps/MapInstanced.cpp
+++ b/src/server/game/Maps/MapInstanced.cpp
@@ -187,7 +187,7 @@ Map* MapInstanced::CreateInstanceForPlayer(const uint32 mapId, Player* player)
 InstanceMap* MapInstanced::CreateInstance(uint32 InstanceId, InstanceSave* save, Difficulty difficulty)
 {
     // load/create a map
-    TRINITY_GUARD(ACE_Thread_Mutex, Lock);
+    std::lock_guard<std::mutex> lock(_mapLock);
 
     // make sure we have a valid map id
     const MapEntry* entry = sMapStore.LookupEntry(GetId());
@@ -223,7 +223,7 @@ InstanceMap* MapInstanced::CreateInstance(uint32 InstanceId, InstanceSave* save,
 BattlegroundMap* MapInstanced::CreateBattleground(uint32 InstanceId, Battleground* bg)
 {
     // load/create a map
-    TRINITY_GUARD(ACE_Thread_Mutex, Lock);
+    std::lock_guard<std::mutex> lock(_mapLock);
 
     TC_LOG_DEBUG("maps", "MapInstanced::CreateBattleground: map bg %d for %d created.", InstanceId, GetId());