diff --git a/src/bindings/universal/ScriptMgr.cpp b/src/bindings/universal/ScriptMgr.cpp
index 0d1c5f535..1b522935b 100644
--- a/src/bindings/universal/ScriptMgr.cpp
+++ b/src/bindings/universal/ScriptMgr.cpp
@@ -289,14 +289,14 @@ bool AreaTrigger      ( Player *player, AreaTriggerEntry* atEntry )
 }
 
 MANGOS_DLL_EXPORT
-bool ProcessEventId(uint32 eventId, Object* source, Object* target, bool data)
+bool ProcessEventId(uint32 eventId, Object* source, Object* target, bool isStart)
 {
     Script *tmpscript = m_scripts[GetEventIdScriptId(eventId)];
     if (!tmpscript || !tmpscript->pProcessEventId)
         return false;
 
-    // data normally false, true for taxi event id where it's a departure
-    return tmpscript->pProcessEventId(eventId, source, target, data);
+    // isStart are normally true. For taxi event id at arrival, it's false
+    return tmpscript->pProcessEventId(eventId, source, target, isStart);
 }
 
 MANGOS_DLL_EXPORT
diff --git a/src/bindings/universal/ScriptMgr.h b/src/bindings/universal/ScriptMgr.h
index cc3cdd816..a0632d6cc 100644
--- a/src/bindings/universal/ScriptMgr.h
+++ b/src/bindings/universal/ScriptMgr.h
@@ -65,7 +65,7 @@ struct Script
     bool (*pItemHello           )(Player *player, Item *_Item, Quest const*_Quest );
     bool (*pGOHello             )(Player *player, GameObject *_GO );
     bool (*pAreaTrigger         )(Player *player, AreaTriggerEntry* at);
-    bool (*pProcessEventId      )(uint32 eventId, Object* source, Object* target, bool data);
+    bool (*pProcessEventId      )(uint32 eventId, Object* source, Object* target, bool isStart);
     bool (*pItemQuestAccept     )(Player *player, Item *_Item, Quest const*_Quest );
     bool (*pGOQuestAccept       )(Player *player, GameObject *_GO, Quest const*_Quest );
     bool (*pGOChooseReward      )(Player *player, GameObject *_GO, Quest const*_Quest, uint32 opt );
diff --git a/src/game/GameObject.cpp b/src/game/GameObject.cpp
index 654035d7a..c05e9639f 100644
--- a/src/game/GameObject.cpp
+++ b/src/game/GameObject.cpp
@@ -913,7 +913,7 @@ void GameObject::Use(Unit* user)
             {
                 DEBUG_LOG("Chest ScriptStart id %u for GO %u", GetGOInfo()->chest.eventId, GetDBTableGUIDLow());
 
-                if (!Script->ProcessEventId(GetGOInfo()->chest.eventId, user, this, false))
+                if (!Script->ProcessEventId(GetGOInfo()->chest.eventId, user, this, true))
                     GetMap()->ScriptsStart(sEventScripts, GetGOInfo()->chest.eventId, user, this);
             }
 
@@ -1019,7 +1019,7 @@ void GameObject::Use(Unit* user)
                 {
                     DEBUG_FILTER_LOG(LOG_FILTER_AI_AND_MOVEGENSS, "Goober ScriptStart id %u for GO entry %u (GUID %u).", info->goober.eventId, GetEntry(), GetDBTableGUIDLow());
 
-                    if (!Script->ProcessEventId(info->goober.eventId, player, this, false))
+                    if (!Script->ProcessEventId(info->goober.eventId, player, this, true))
                         GetMap()->ScriptsStart(sEventScripts, info->goober.eventId, player, this);
                 }
 
@@ -1082,7 +1082,7 @@ void GameObject::Use(Unit* user)
 
             if (info->camera.eventID)
             {
-                if (!Script->ProcessEventId(info->camera.eventID, player, this, false))
+                if (!Script->ProcessEventId(info->camera.eventID, player, this, true))
                     GetMap()->ScriptsStart(sEventScripts, info->camera.eventID, player, this);
             }
 
diff --git a/src/game/ScriptCalls.h b/src/game/ScriptCalls.h
index 5b7977403..6bd7c74ad 100644
--- a/src/game/ScriptCalls.h
+++ b/src/game/ScriptCalls.h
@@ -55,7 +55,7 @@ typedef bool(MANGOS_IMPORT * scriptCallChooseReward)( Player *player, Creature *
 typedef bool(MANGOS_IMPORT * scriptCallItemHello)( Player *player, Item *, Quest const*);
 typedef bool(MANGOS_IMPORT * scriptCallGOHello)( Player *player, GameObject * );
 typedef bool(MANGOS_IMPORT * scriptCallAreaTrigger)( Player *player, AreaTriggerEntry const* );
-typedef bool(MANGOS_IMPORT * scriptCallProcessEventId)(uint32 eventId, Object* source, Object* target, bool data);
+typedef bool(MANGOS_IMPORT * scriptCallProcessEventId)(uint32 eventId, Object* source, Object* target, bool isStart);
 typedef bool(MANGOS_IMPORT * scriptCallItemQuestAccept)(Player *player, Item *, Quest const*);
 typedef bool(MANGOS_IMPORT * scriptCallGOQuestAccept)(Player *player, GameObject *, Quest const*);
 typedef bool(MANGOS_IMPORT * scriptCallGOChooseReward)(Player *player, GameObject *, Quest const*, uint32 opt );
diff --git a/src/game/SpellEffects.cpp b/src/game/SpellEffects.cpp
index 2b6795928..d8377e24e 100644
--- a/src/game/SpellEffects.cpp
+++ b/src/game/SpellEffects.cpp
@@ -3097,7 +3097,7 @@ void Spell::EffectSendEvent(SpellEffectIndex effectIndex)
     */
     DEBUG_FILTER_LOG(LOG_FILTER_SPELL_CAST, "Spell ScriptStart %u for spellid %u in EffectSendEvent ", m_spellInfo->EffectMiscValue[effectIndex], m_spellInfo->Id);
 
-    if (!Script->ProcessEventId(m_spellInfo->EffectMiscValue[effectIndex], m_caster, focusObject, false))
+    if (!Script->ProcessEventId(m_spellInfo->EffectMiscValue[effectIndex], m_caster, focusObject, true))
         m_caster->GetMap()->ScriptsStart(sEventScripts, m_spellInfo->EffectMiscValue[effectIndex], m_caster, focusObject);
 }
 
diff --git a/src/shared/revision_nr.h b/src/shared/revision_nr.h
index bc9e452e2..848c31fae 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 "10302"
+ #define REVISION_NR "10303"
 #endif // __REVISION_NR_H__