diff --git a/ReportImp/AwoDortmund/Service/CustomAccountingService.cs b/ReportImp/AwoDortmund/Service/CustomAccountingService.cs
index 9d68a2823..c5548cfb1 100644
--- a/ReportImp/AwoDortmund/Service/CustomAccountingService.cs
+++ b/ReportImp/AwoDortmund/Service/CustomAccountingService.cs
@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-
 using BeWo.Data.Access;
 using BeWo.Data.Entities;
 using BeWo.Service.DCEntityMapper;
@@ -29,27 +28,27 @@ namespace AwoDortmund.Service
         }
 
         
-            public override ServiceInvoice ErstelleStornoRechnung(InvoiceBaseDC ibdc)
+        public override ServiceInvoice ErstelleStornoRechnung(InvoiceBaseDC ibdc)
+        {
+            var i = base.ErstelleStornoRechnung(ibdc);
+
+            int invoiceCounter = 0;
+            var inc = PluginLoader.FindClass<InvoiceNumberGenerator>();
+            i.InvoiceBase.InvoiceNumber = inc.GetNextInvoiceNumber(invoiceCounter, i.InvoiceBase) + " Storno";
+
+            if (String.IsNullOrEmpty(i.InvoiceBase.InvoiceTypeText))
             {
-                var i = base.ErstelleStornoRechnung(ibdc);
-
-                int invoiceCounter = 0;
-                var inc = PluginLoader.FindClass<InvoiceNumberGenerator>();
-                i.InvoiceBase.InvoiceNumber = inc.GetNextInvoiceNumber(invoiceCounter, i.InvoiceBase) + " Storno";
-
-                if (String.IsNullOrEmpty(i.InvoiceBase.InvoiceTypeText))
-                {
-                    i.InvoiceBase.InvoiceTypeText = "Storno";
-                }
-                else
-                {
-                    i.InvoiceBase.InvoiceTypeText += " Storno";
-                }
-
-                DAOFactory.GenericDAO.Insert(i);
-                inc.IncreaseInvoiceNumber(1, null);
-
-                return i;
+                i.InvoiceBase.InvoiceTypeText = "Storno";
             }
+            else
+            {
+                i.InvoiceBase.InvoiceTypeText += " Storno";
+            }
+
+            DAOFactory.GenericDAO.Insert(i);
+            inc.IncreaseInvoiceNumber(1, null);
+
+            return i;
+        }
     }
 }
\ No newline at end of file