diff --git a/ReportImp/MobileEV/Sammelrechnung.cs b/ReportImp/MobileEV/Sammelrechnung.cs
index 5857c621b..8b8c06823 100644
--- a/ReportImp/MobileEV/Sammelrechnung.cs
+++ b/ReportImp/MobileEV/Sammelrechnung.cs
@@ -46,6 +46,15 @@ namespace MobileEV
 
             foreach (var ip in pRO.ServiceInvoicePeriods)
             {
+                foreach (var item in ip.ServiceInvoiceItems)
+                {
+                    if (item.ServiceRecord == null)
+                        item.ServiceRecord = new ServiceRecordDC()
+                        {
+                            ServiceDescription = new ServiceDescriptionDC() { CategoryName = item.ServiceDescription != null ? item.ServiceDescription : ""}
+                        };
+                }
+
                 ip.ServiceInvoiceItems = ip.ServiceInvoiceItems.OrderBy(sii => sii.ServiceRecord.ServiceDescription.CategoryName).ToList();
 
                 string kat = "";