diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp
index 01552e2ba88..b4d51eac2c2 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp
@@ -254,14 +254,6 @@ class boss_professor_putricide : public CreatureScript
                 }
             }
 
-            void EnterEvadeMode(EvadeReason why = EVADE_REASON_OTHER) override
-            {
-                if (why == EVADE_REASON_BOUNDARY && (events.IsInPhase(PHASE_ROTFACE) || events.IsInPhase(PHASE_FESTERGUT)))
-                    return;
-
-                BossAI::EnterEvadeMode(why);
-            }
-
             void JustEngagedWith(Unit* who) override
             {
                 if (events.IsInPhase(PHASE_ROTFACE) || events.IsInPhase(PHASE_FESTERGUT))
@@ -439,7 +431,7 @@ class boss_professor_putricide : public CreatureScript
                         me->SetSpeedRate(MOVE_RUN, _baseSpeed*2.0f);
                         me->GetMotionMaster()->MovePoint(POINT_FESTERGUT, festergutWatchPos);
                         me->SetReactState(REACT_PASSIVE);
-                        DoZoneInCombat(me);
+                        EngagementStart(nullptr);
                         if (IsHeroic())
                             events.ScheduleEvent(EVENT_FESTERGUT_GOO, urand(13000, 18000), 0, PHASE_FESTERGUT);
                         break;
@@ -456,8 +448,8 @@ class boss_professor_putricide : public CreatureScript
                         me->SetSpeedRate(MOVE_RUN, _baseSpeed*2.0f);
                         me->GetMotionMaster()->MovePoint(POINT_ROTFACE, rotfaceWatchPos);
                         me->SetReactState(REACT_PASSIVE);
+                        EngagementStart(nullptr);
                         _oozeFloodStage = 0;
-                        DoZoneInCombat(me);
                         // init random sequence of floods
                         if (Creature* rotface = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ROTFACE)))
                         {