diff --git a/src/server/scripts/Spells/spell_warlock.cpp b/src/server/scripts/Spells/spell_warlock.cpp
index 5dbce0a99..ba6f0fbb4 100644
--- a/src/server/scripts/Spells/spell_warlock.cpp
+++ b/src/server/scripts/Spells/spell_warlock.cpp
@@ -944,7 +944,8 @@ class spell_warl_life_tap : public SpellScriptLoader
                 if (Unit* target = GetHitUnit())
                 {
                     int32 damage = GetEffectValue() + 1.0f + (caster->GetStat(STAT_SPIRIT) * 1.5f);
-                    int32 mana = int32(damage + (caster->GetInt32Value(PLAYER_FIELD_MOD_DAMAGE_DONE_POS+SPELL_SCHOOL_SHADOW) * 0.5f));
+                    int32 damage2Mana = GetEffectValue();
+                    int32 mana = int32(damage2Mana + (caster->GetInt32Value(PLAYER_FIELD_MOD_DAMAGE_DONE_POS+SPELL_SCHOOL_SHADOW) * 0.5f));
 
                     // Shouldn't Appear in Combat Log
                     target->ModifyHealth(-damage);