diff --git a/Source/Scripts/Spells/Quest.cs b/Source/Scripts/Spells/Quest.cs
index f49dabc34..3d83840b7 100644
--- a/Source/Scripts/Spells/Quest.cs
+++ b/Source/Scripts/Spells/Quest.cs
@@ -1057,7 +1057,7 @@ namespace Scripts.Spells.Quest
         {
             Unit caster = GetCaster();
 
-            if (RandomHelper.randChance(80))
+            if (RandomHelper.randChance(50))
                 caster.CastSpell(caster, SpellIds.SummonDeepJormungar, true);
             else
                 caster.CastSpell(caster, SpellIds.StormforgedMoleMachine, true);