diff --git a/ReportImp/AutismusKoelnBonn/Invoicing/CustomInvoiceNumberGenerator.cs b/ReportImp/AutismusKoelnBonn/Invoicing/CustomInvoiceNumberGenerator.cs
index 3629d11ee..488050a00 100644
--- a/ReportImp/AutismusKoelnBonn/Invoicing/CustomInvoiceNumberGenerator.cs
+++ b/ReportImp/AutismusKoelnBonn/Invoicing/CustomInvoiceNumberGenerator.cs
@@ -25,7 +25,7 @@ namespace AutismusKoelnBonn.Invoicing
             string next = String.Empty;
             Customer c = null;
 
-            if (invoiceBase.Type == InvoiceType.General && invoiceBase.RecipientCustomerOid.HasValue)
+            if (invoiceBase.Type == InvoiceType.General && invoiceBase.RecipientCustomerOid.HasValue || invoiceBase.Type == InvoiceType.CustomerEquity && invoiceBase.RecipientCustomerOid.HasValue)
             {
                 c = DAOFactory.GenericDAO.LoadByID<Customer>(invoiceBase.RecipientCustomerOid.Value);
             }