diff --git a/doc/EventAI.txt b/doc/EventAI.txt
index c63fb9044..cf385643b 100644
--- a/doc/EventAI.txt
+++ b/doc/EventAI.txt
@@ -137,7 +137,7 @@ Each event type has its own specific interpretation of it's params, like every e
 39   ACTION_T_CALL_FOR_HELP            Radius                          Call any friendly out-of-combat creatures in a radius (Param1) to attack current creature's target.
 40   ACTION_T_SET_SHEATH               Sheath                          Sets sheath state for a creature (0 = no weapon, 1 = melee weapon, 2 = ranged weapon).
 41   ACTION_T_FORCE_DESPAWN            No Params                       Despawns the creature
-42   ACTION_T_SET_INVINCEABILITY_HP_LEVEL hp_level, is_percent         Set min. health level for creature that can be set at damage as flat value or percent from max health
+42   ACTION_T_SET_INVINCIBILITY_HP_LEVEL hp_level, is_percent          Set min. health level for creature that can be set at damage as flat value or percent from max health
 
 * = Use -1 where the param is expected to do nothing. Random constant is generated for each event, so if you have a random yell and a random sound, they will be linked up with each other (ie. param2 with param2).
 
@@ -739,7 +739,7 @@ Despawns the creature (in or out of combat)
 No parameters
 
 -------------------------
-42   ACTION_T_SET_INVINCEABILITY_HP_LEVEL
+42   ACTION_T_SET_INVINCIBILITY_HP_LEVEL
 -------------------------
 Parameter 1: min. health level for creature that can be set at damage, 0 used as absent min. health value for apply damage.
 Parameter 2: format of paramater 1 value
diff --git a/src/game/CreatureEventAI.cpp b/src/game/CreatureEventAI.cpp
index 7d52d7c7b..a85aa7abd 100644
--- a/src/game/CreatureEventAI.cpp
+++ b/src/game/CreatureEventAI.cpp
@@ -782,12 +782,12 @@ void CreatureEventAI::ProcessAction(CreatureEventAI_Action const& action, uint32
             m_creature->ForcedDespawn();
             break;
         }
-        case ACTION_T_SET_INVINCEABILITY_HP_LEVEL:
+        case ACTION_T_SET_INVINCIBILITY_HP_LEVEL:
         {
-            if(action.invinceability_hp_level.is_percent)
-                InvinceabilityHpLevel = m_creature->GetMaxHealth()*100/action.invinceability_hp_level.hp_level;
+            if(action.invincibility_hp_level.is_percent)
+                InvinceabilityHpLevel = m_creature->GetMaxHealth()*action.invincibility_hp_level.hp_level/100;
             else
-                InvinceabilityHpLevel = action.invinceability_hp_level.hp_level;
+                InvinceabilityHpLevel = action.invincibility_hp_level.hp_level;
             break;
         }
     }
diff --git a/src/game/CreatureEventAI.h b/src/game/CreatureEventAI.h
index 8c1fbf624..603d88974 100644
--- a/src/game/CreatureEventAI.h
+++ b/src/game/CreatureEventAI.h
@@ -106,7 +106,7 @@ enum EventAI_ActionType
     ACTION_T_CALL_FOR_HELP              = 39,               // Radius
     ACTION_T_SET_SHEATH                 = 40,               // Sheath (0-passive,1-melee,2-ranged)
     ACTION_T_FORCE_DESPAWN              = 41,               // No Params
-    ACTION_T_SET_INVINCEABILITY_HP_LEVEL= 42,               // MinHpValue, format(0-flat,1-percent from max health)
+    ACTION_T_SET_INVINCIBILITY_HP_LEVEL = 42,               // MinHpValue, format(0-flat,1-percent from max health)
     ACTION_T_END,
 };
 
@@ -374,11 +374,12 @@ struct CreatureEventAI_Action
         {
             uint32 sheath;
         } set_sheath;
+        // ACTION_T_SET_INVINCIBILITY_HP_LEVEL             = 42
         struct
         {
             uint32 hp_level;
             uint32 is_percent;
-        } invinceability_hp_level;
+        } invincibility_hp_level;
         // RAW
         struct
         {
diff --git a/src/game/CreatureEventAIMgr.cpp b/src/game/CreatureEventAIMgr.cpp
index dfa017c0a..5a7a061c1 100644
--- a/src/game/CreatureEventAIMgr.cpp
+++ b/src/game/CreatureEventAIMgr.cpp
@@ -661,13 +661,13 @@ void CreatureEventAIMgr::LoadCreatureEventAI_Scripts()
                             action.set_sheath.sheath = SHEATH_STATE_UNARMED;
                         }
                         break;
-                    case ACTION_T_SET_INVINCEABILITY_HP_LEVEL:
-                        if(action.invinceability_hp_level.is_percent)
+                    case ACTION_T_SET_INVINCIBILITY_HP_LEVEL:
+                        if(action.invincibility_hp_level.is_percent)
                         {
-                            if(action.invinceability_hp_level.hp_level > 100)
+                            if(action.invincibility_hp_level.hp_level > 100)
                             {
-                                sLog.outErrorDb("CreatureEventAI:  Event %u Action %u uses wrong percent value %u.", i, j+1, action.invinceability_hp_level.hp_level);
-                                action.invinceability_hp_level.hp_level = 100;
+                                sLog.outErrorDb("CreatureEventAI:  Event %u Action %u uses wrong percent value %u.", i, j+1, action.invincibility_hp_level.hp_level);
+                                action.invincibility_hp_level.hp_level = 100;
                             }
                         }
                         break;
diff --git a/src/shared/revision_nr.h b/src/shared/revision_nr.h
index af72413bf..82f30409c 100644
--- a/src/shared/revision_nr.h
+++ b/src/shared/revision_nr.h
@@ -1,4 +1,4 @@
 #ifndef __REVISION_NR_H__
 #define __REVISION_NR_H__
- #define REVISION_NR "8234"
+ #define REVISION_NR "8235"
 #endif // __REVISION_NR_H__