diff --git a/src/game/Unit.cpp b/src/game/Unit.cpp
index 68146479d0c..bb71c8326b9 100644
--- a/src/game/Unit.cpp
+++ b/src/game/Unit.cpp
@@ -3466,6 +3466,23 @@ int32 Unit::GetMaxNegativeAuraModifierByMiscValue(AuraType auratype, int32 misc_
     return modifier;
 }
 
+float Unit::GetTotalAuraMultiplierByMiscValueForMask(AuraType auratype, uint32 mask) const
+{
+    if(!mask)
+        return 1.0f;
+
+    float multiplier = 1.0f;
+
+    AuraList const& mTotalAuraList = GetAurasByType(auratype);
+    for(AuraList::const_iterator i = mTotalAuraList.begin();i != mTotalAuraList.end(); ++i)
+    {
+        Modifier* mod = (*i)->GetModifier();
+        if (mask & (1 << (mod->m_miscvalue -1)))
+            multiplier *= (100.0f + mod->m_amount)/100.0f;
+    }
+    return multiplier;
+}
+
 bool Unit::AddAura(Aura *Aur)
 {
     SpellEntry const* aurSpellInfo = Aur->GetSpellProto();
@@ -8571,15 +8588,7 @@ uint32 Unit::SpellDamageBonus(Unit *pVictim, SpellEntry const *spellProto, uint3
     }
 
     // Mod damage from spell mechanic
-    if (uint32 mechanicMask = GetAllSpellMechanicMask(spellProto))
-    {
-        AuraList const& mDamageDoneMechanic = pVictim->GetAurasByType(SPELL_AURA_MOD_MECHANIC_DAMAGE_TAKEN_PERCENT);
-        for(AuraList::const_iterator i = mDamageDoneMechanic.begin();i != mDamageDoneMechanic.end(); ++i)
-        {
-            if (mechanicMask & uint32(1 << ((*i)->GetModifier()->m_miscvalue)))
-                TakenTotalMod *= ((*i)->GetModifier()->m_amount + 100.0f) / 100.0f;
-        }
-    }
+    TakenTotalMod *= pVictim->GetTotalAuraMultiplierByMiscValueForMask(SPELL_AURA_MOD_MECHANIC_DAMAGE_TAKEN_PERCENT,GetAllSpellMechanicMask(spellProto));
 
     // Mod damage taken from AoE spells
     if(IsAreaOfEffectSpell(spellProto))
@@ -9388,16 +9397,7 @@ uint32 Unit::MeleeDamageBonus(Unit *pVictim, uint32 pdamage,WeaponAttackType att
     TakenPercent *= pVictim->GetTotalAuraMultiplierByMiscMask(SPELL_AURA_MOD_DAMAGE_PERCENT_TAKEN, schoolMask);
 
     // ..taken pct (by mechanic mask)
-    if (mechanicMask)
-    {
-        AuraList const& mTotalAuraList = GetAurasByType(SPELL_AURA_MOD_MECHANIC_DAMAGE_TAKEN_PERCENT);
-        for(AuraList::const_iterator i = mTotalAuraList.begin(); i != mTotalAuraList.end(); ++i)
-        {
-            Modifier* mod = (*i)->GetModifier();
-            if ((1<<(mod->m_miscvalue-1)) & mechanicMask)
-                TakenPercent *= (100.0f + mod->m_amount)/100.0f;
-        }
-    }
+    TakenPercent *= pVictim->GetTotalAuraMultiplierByMiscValueForMask(SPELL_AURA_MOD_MECHANIC_DAMAGE_TAKEN_PERCENT,mechanicMask);
 
     // ..taken pct (melee/ranged)
     if(attType == RANGED_ATTACK)
diff --git a/src/game/Unit.h b/src/game/Unit.h
index 0d5fea3d529..b4dade09f02 100644
--- a/src/game/Unit.h
+++ b/src/game/Unit.h
@@ -1424,6 +1424,9 @@ class MANGOS_DLL_SPEC Unit : public WorldObject
         int32 GetMaxPositiveAuraModifierByMiscValue(AuraType auratype, int32 misc_value) const;
         int32 GetMaxNegativeAuraModifierByMiscValue(AuraType auratype, int32 misc_value) const;
 
+        // misc have plain value but we check it fit to provided values mask (mask & (1 << (misc-1)))
+        float GetTotalAuraMultiplierByMiscValueForMask(AuraType auratype, uint32 mask) const;
+
         Aura* GetDummyAura(uint32 spell_id) const;
 
         uint32 m_AuraFlags;
diff --git a/src/shared/revision_nr.h b/src/shared/revision_nr.h
index a93de7126b1..11dee70f8ee 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 "8897"
+ #define REVISION_NR "8898"
 #endif // __REVISION_NR_H__