diff --git a/Elwig/Windows/DeliveryAdminWindow.xaml.cs b/Elwig/Windows/DeliveryAdminWindow.xaml.cs
index 9272567..e301fcd 100644
--- a/Elwig/Windows/DeliveryAdminWindow.xaml.cs
+++ b/Elwig/Windows/DeliveryAdminWindow.xaml.cs
@@ -560,7 +560,7 @@ namespace Elwig.Windows {
             p.DPNr = dpnr;
 
             d.DateString = string.Join("-", DateInput.Text.Split(".").Reverse());
-            if (IsCreating || InputHasChanged(DateInput)) {
+            if (deliveryNew || InputHasChanged(DateInput)) {
                 d.LNr = await Context.NextLNr(d.Date);
             }
             if (IsCreating) {