diff --git a/src/game/SpellAuras.cpp b/src/game/SpellAuras.cpp
index 4bbd1f06fa..9455595291 100644
--- a/src/game/SpellAuras.cpp
+++ b/src/game/SpellAuras.cpp
@@ -4673,6 +4673,17 @@ void AuraEffect::HandlePeriodicDamage(bool apply, bool Real, bool changeAmount)
             }
             break;
         }
+        // Drain Soul - If the target is at or below 25% health, Drain Soul causes four times the normal damage
+        case SPELLFAMILY_WARLOCK:
+        {
+            if (m_spellProto->SpellFamilyFlags[0] & 0x00004000)
+            {
+                // if victim is below 25% of hp
+                if (m_target->GetMaxHealth() / 4 > m_target->GetHealth())
+                    m_amount *= 4;
+            }
+            break;
+        }
         case SPELLFAMILY_DRUID:
         {
             // Rake
diff --git a/src/game/Unit.cpp b/src/game/Unit.cpp
index 99db7dc310..96a0a95233 100644
--- a/src/game/Unit.cpp
+++ b/src/game/Unit.cpp
@@ -9265,7 +9265,6 @@ uint32 Unit::SpellDamageBonus(Unit *pVictim, SpellEntry const *spellProto, uint3
                 }
             }
         break;
-
         // Glyph of Shadow Word: Pain
         case SPELLFAMILY_PRIEST:
             if (spellProto->SpellFamilyFlags[0] & 0x800000)