diff --git a/FoodsharingSiegen.Server/Dialogs/EditProspectDialog.razor b/FoodsharingSiegen.Server/Dialogs/EditProspectDialog.razor
index ea7f449..9a6df16 100644
--- a/FoodsharingSiegen.Server/Dialogs/EditProspectDialog.razor
+++ b/FoodsharingSiegen.Server/Dialogs/EditProspectDialog.razor
@@ -11,7 +11,7 @@
     <div class="col">
         <Field>
             <FieldLabel>Foodsharing-ID</FieldLabel>
-            <NumericEdit TValue="int?" Value="Prospect.FsId" ValueChanged="@((int? v) => Prospect.FsId = v ?? 0)"></NumericEdit>
+            <NumericEdit TValue="int?" Value="@(Prospect.FsId == 0 ? (int?)null : Prospect.FsId)" ValueChanged="@((int? v) => Prospect.FsId = v ?? 0)"></NumericEdit>
         </Field>
     </div>
 </div>