diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_flame_leviathan.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_flame_leviathan.cpp
index c4f973726b..aae1995e20 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_flame_leviathan.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_flame_leviathan.cpp
@@ -26,6 +26,10 @@
 #include "ScriptedCreature.h"
 #include "ScriptedGossip.h"
 #include "ScriptedEscortAI.h"
+#include "Cell.h"
+#include "CellImpl.h"
+#include "GridNotifiers.h"
+#include "GridNotifiersImpl.h"
 #include "CombatAI.h"
 #include "PassiveAI.h"
 #include "ObjectMgr.h"