diff --git a/src/Swisschain.Extensions.Idempotency/Outbox.cs b/src/Swisschain.Extensions.Idempotency/Outbox.cs
index 55dc8df..c2aef1c 100644
--- a/src/Swisschain.Extensions.Idempotency/Outbox.cs
+++ b/src/Swisschain.Extensions.Idempotency/Outbox.cs
@@ -144,13 +144,12 @@ public static Outbox Open(IUnitOfWork unitOfWork,
         public static Outbox Restore(IUnitOfWork unitOfWork,
             IOutboxDispatcher dispatcher,
             string idempotencyId,
-            bool isClosed,
             bool isDispatched,
             object response,
             IEnumerable<object> commands,
             IEnumerable<object> events)
         {
-            var instance = new Outbox(unitOfWork, dispatcher, idempotencyId, isClosed, isDispatched)
+            var instance = new Outbox(unitOfWork, dispatcher, idempotencyId, isClosed: true, isDispatched)
             {
                 Response = response
             };