diff --git a/src/server/game/Server/WorldSession.h b/src/server/game/Server/WorldSession.h
index 099bfe8e2b2..42fd77d4bbc 100644
--- a/src/server/game/Server/WorldSession.h
+++ b/src/server/game/Server/WorldSession.h
@@ -359,10 +359,10 @@ class WorldSession
         void ResetClientTimeDelay() { m_clientTimeDelay = 0; }
         uint32 getDialogStatus(Player* player, Object* questgiver, uint32 defstatus);
 
-        time_t m_timeOutTime;
+		ACE_Atomic_Op<ACE_Thread_Mutex, time_t> m_timeOutTime;
         void UpdateTimeOutTime(uint32 diff)
         {
-            if (time_t(diff) > m_timeOutTime)
+			if (time_t(diff) > m_timeOutTime.value())
                 m_timeOutTime = 0;
             else
                 m_timeOutTime -= diff;