diff --git a/Elwig/Windows/TestWindow.xaml.cs b/Elwig/Windows/TestWindow.xaml.cs
index a25576a..198deaa 100644
--- a/Elwig/Windows/TestWindow.xaml.cs
+++ b/Elwig/Windows/TestWindow.xaml.cs
@@ -58,7 +58,7 @@ namespace Elwig.Windows {
         private async void ZipButton_Click(object sender, RoutedEventArgs evt) {
             using var ctx = new AppDbContext();
             using var ods = new OdsFile(@"C:\Users\Lorenz\Desktop\test.ods");
-            await ods.AddTable(await DeliveryConfirmationData.ForMember(ctx.DeliveryParts, 2023, 2948));
+            await ods.AddTable(await DeliveryConfirmationData.ForMember(ctx.DeliveryParts, 2023, ctx.Members.Find(2948)));
         }
 
         private async void PdfDeliveryButton_Click(object sender, RoutedEventArgs evt) {