diff --git a/src/server/game/Spells/Auras/SpellAuraEffects.cpp b/src/server/game/Spells/Auras/SpellAuraEffects.cpp
index 85b2a5995..63af8f62b 100644
--- a/src/server/game/Spells/Auras/SpellAuraEffects.cpp
+++ b/src/server/game/Spells/Auras/SpellAuraEffects.cpp
@@ -2011,7 +2011,7 @@ void AuraEffect::HandleAuraModShapeshift(AuraApplication const* aurApp, uint8 mo
         if (modelid > 0)
         {
             bool allow = true;
-            if (target->getTransForm() && !target->GetMapId() == 560 /*The Escape From Durnholde*/)
+            if (target->getTransForm() && !(target->GetMapId() == 560 /*The Escape From Durnholde*/))
                 if (SpellInfo const* transformSpellInfo = sSpellMgr->GetSpellInfo(target->getTransForm()))
                     if (transformSpellInfo->HasAttribute(SPELL_ATTR0_NO_IMMUNITIES) || !transformSpellInfo->IsPositive())
                         allow = false;