diff --git a/src/game/Unit.cpp b/src/game/Unit.cpp
index 0deffac6a..7ca85987f 100644
--- a/src/game/Unit.cpp
+++ b/src/game/Unit.cpp
@@ -9796,7 +9796,8 @@ int32 Unit::CalculateSpellDamage(SpellEntry const* spellProto, uint8 effect_inde
 
     if(spellProto->Attributes & SPELL_ATTR_LEVEL_DAMAGE_CALCULATION && spellProto->spellLevel &&
             spellProto->Effect[effect_index] != SPELL_EFFECT_WEAPON_PERCENT_DAMAGE &&
-            spellProto->Effect[effect_index] != SPELL_EFFECT_KNOCK_BACK)
+            spellProto->Effect[effect_index] != SPELL_EFFECT_KNOCK_BACK &&
+            (spellProto->Effect[effect_index] != SPELL_EFFECT_APPLY_AURA || spellProto->EffectApplyAuraName[effect_index] != SPELL_AURA_MOD_DECREASE_SPEED))
         value = int32(value*0.25f*exp(getLevel()*(70-spellProto->spellLevel)/1000.0f));
 
     return value;
diff --git a/src/shared/revision_nr.h b/src/shared/revision_nr.h
index 33fea0275..5f7397c33 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 "8132"
+ #define REVISION_NR "8133"
 #endif // __REVISION_NR_H__