diff --git a/ReportImp/SHKService/Invoicing/CollectiveInvoiceCreation.cs b/ReportImp/SHKService/Invoicing/CollectiveInvoiceCreation.cs
index 1b69db3e5..5f5604353 100644
--- a/ReportImp/SHKService/Invoicing/CollectiveInvoiceCreation.cs
+++ b/ReportImp/SHKService/Invoicing/CollectiveInvoiceCreation.cs
@@ -94,7 +94,7 @@ namespace SHKService.Invoicing
                 };
                 if (supportConceptApprovalPeriod.ServiceCategory.Name == "Fahrzeit")
                 {
-                    if (cb2sc.SupportConcept.Customer.Person.LastNameFirstName.Contains("(ka)"))
+                    if (cb2sc.SupportConcept.Customer.Person.LastNameFirstName.ToLower().Contains("(ka"))
                     {
                         ii.AmountPerUnit = supportConceptApprovalPeriod.ApprovedBEPerInterval * AMOUNT_PER_KMKA;
                         ii.ItemDescription = "Fahrzeiten KA";
@@ -108,7 +108,7 @@ namespace SHKService.Invoicing
                 else
                 {
                     ii.AmountPerUnit = supportConceptApprovalPeriod.ApprovedBEPerInterval * (decimal)Math.Round((double)data[0].AmountTotal / 60, 4, MidpointRounding.AwayFromZero);
-                    if (!cb2sc.SupportConcept.Customer.Person.LastNameFirstName.Contains("(ka)"))
+                    if (!cb2sc.SupportConcept.Customer.Person.LastNameFirstName.ToLower().Contains("(ka"))
                     {
                         var LG = (decimal)GetLeistungsgruppe(supportConceptApprovalPeriod.ApprovedBEPerInterval);
                         if (data.Count > 0 && data[0].AmountTotal != null)
@@ -119,7 +119,7 @@ namespace SHKService.Invoicing
                         ii.ItemDescription = "Qualifizierte Assistenz";
                         ii.Notice = LG.ToString();
                     }
-                    if (cb2sc.SupportConcept.Customer.Person.LastNameFirstName.Contains("(ka)"))
+                    if (cb2sc.SupportConcept.Customer.Person.LastNameFirstName.ToLower().Contains("(ka"))
                     {
                         ii.ItemDescription = "Kompensatorische Assistenz";
                     }