diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_lord_marrowgar.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_lord_marrowgar.cpp
index 1de3884664b..66806920e77 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_lord_marrowgar.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_lord_marrowgar.cpp
@@ -135,6 +135,7 @@ class boss_lord_marrowgar : public CreatureScript
                 _boneStormDuration = RAID_MODE<uint32>(20000, 30000, 20000, 30000);
                 _baseSpeed = creature->GetSpeedRate(MOVE_RUN);
                 _coldflameLastPos.Relocate(creature);
+                _introDone = false;
                 _boneSlice = false;
             }