1 files changed, 1 insertions, 1 deletions
diff --git a/src/game/SpellEffects.cpp b/src/game/SpellEffects.cpp
index f4bf1af0180..e8fdbf5adce 100644
--- a/src/game/SpellEffects.cpp
+++ b/src/game/SpellEffects.cpp
@@ -5085,7 +5085,7 @@ void Spell::EffectDuel(uint32 i)
 
     // Players can only fight a duel with each other outside (=not inside dungeons and not in capital cities)
     // Don't have to check the target's map since you cannot challenge someone across maps
-    if( caster->GetMapId() != 0 && caster->GetMapId() != 1 && caster->GetMapId() != 530)
+    if(caster->GetMap()->Instanceable())
     {
         SendCastResult(SPELL_FAILED_NO_DUELING);            // Dueling isn't allowed here
         return;