diff --git a/src/server/game/Entities/GameObject/GameObject.cpp b/src/server/game/Entities/GameObject/GameObject.cpp
index f92904b737..fee9b53124 100644
--- a/src/server/game/Entities/GameObject/GameObject.cpp
+++ b/src/server/game/Entities/GameObject/GameObject.cpp
@@ -1229,7 +1229,7 @@ uint8 GameObject::getLevelForTarget(WorldObject const* target) const
         if (GetGOInfo()->trap.level != 0)
             return GetGOInfo()->trap.level;
         if (const Unit* targetUnit = target->ToUnit())
-            return targetUnit->GetLevel();
+            return targetUnit->getLevel();
     }
 
     return 1;
diff --git a/src/server/scripts/Commands/cs_npc.cpp b/src/server/scripts/Commands/cs_npc.cpp
index 816cf3bd8c..70d239cf75 100644
--- a/src/server/scripts/Commands/cs_npc.cpp
+++ b/src/server/scripts/Commands/cs_npc.cpp
@@ -151,7 +151,7 @@ EnumName<UnitFlags> const unitFlags[MAX_UNIT_FLAGS] =
     CREATE_NAMED_ENUM(UNIT_FLAG_UNK_28),
     CREATE_NAMED_ENUM(UNIT_FLAG_UNK_29),
     CREATE_NAMED_ENUM(UNIT_FLAG_SHEATHE),
-    CREATE_NAMED_ENUM(UNIT_FLAG_UNK_31)
+    CREATE_NAMED_ENUM(UNIT_FLAG_IMMUNE)
 };
 
 EnumName<CreatureFlagsExtra> const flagsExtra[] =
diff --git a/src/server/scripts/Kalimdor/HallsOfOrigination/boss_earthrager_ptah.cpp b/src/server/scripts/Kalimdor/HallsOfOrigination/boss_earthrager_ptah.cpp
index dd5e5d3ae8..e3f61907f9 100644
--- a/src/server/scripts/Kalimdor/HallsOfOrigination/boss_earthrager_ptah.cpp
+++ b/src/server/scripts/Kalimdor/HallsOfOrigination/boss_earthrager_ptah.cpp
@@ -337,14 +337,14 @@ class spell_earthrager_ptah_explosion : public AuraScript
     void SetFlags(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
     {
         Unit* target = GetTarget();
-        target->SetFlag(UNIT_FIELD_FLAGS, uint32(UNIT_FLAG_NOT_SELECTABLE | UNIT_FLAG_UNK_29 | UNIT_FLAG_UNK_31));
+        target->SetFlag(UNIT_FIELD_FLAGS, uint32(UNIT_FLAG_NOT_SELECTABLE | UNIT_FLAG_UNK_29 | UNIT_FLAG_IMMUNE));
         target->SetFlag(UNIT_FIELD_FLAGS_2, UNIT_FLAG2_FEIGN_DEATH);
     }
 
     void RemoveFlags(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
     {
         Unit* target = GetTarget();
-        target->RemoveFlag(UNIT_FIELD_FLAGS, uint32(UNIT_FLAG_NOT_SELECTABLE | UNIT_FLAG_UNK_29 | UNIT_FLAG_UNK_31));
+        target->RemoveFlag(UNIT_FIELD_FLAGS, uint32(UNIT_FLAG_NOT_SELECTABLE | UNIT_FLAG_UNK_29 | UNIT_FLAG_IMMUNE));
         target->RemoveFlag(UNIT_FIELD_FLAGS_2, UNIT_FLAG2_FEIGN_DEATH);
     }
 
diff --git a/src/server/scripts/Kalimdor/HallsOfOrigination/boss_temple_guardian_anhuur.cpp b/src/server/scripts/Kalimdor/HallsOfOrigination/boss_temple_guardian_anhuur.cpp
index add2ad1bb2..fe5d442ba9 100644
--- a/src/server/scripts/Kalimdor/HallsOfOrigination/boss_temple_guardian_anhuur.cpp
+++ b/src/server/scripts/Kalimdor/HallsOfOrigination/boss_temple_guardian_anhuur.cpp
@@ -231,7 +231,7 @@ struct boss_temple_guardian_anhuur : public BossAI
                     me->AddUnitMovementFlag(MOVEMENTFLAG_ROOT);
                     me->SetFacingTo(1.5708f);
                     DoCastSelf(SPELL_SHIELD_OF_LIGHT);
-                    me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_UNK_31);
+                    me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_IMMUNE);
                     events.ScheduleEvent(EVENT_ACTIVATE_BEACONS, 2s, 0, PHASE_SHIELD);
                     break;
                 case EVENT_ACTIVATE_BEACONS: