diff --git a/ReportImp/PerspektivenEV/Invoicing/CollectiveInvoiceCreationBthg.cs b/ReportImp/PerspektivenEV/Invoicing/CollectiveInvoiceCreationBthg.cs
index 6895d3868..176b1c79e 100644
--- a/ReportImp/PerspektivenEV/Invoicing/CollectiveInvoiceCreationBthg.cs
+++ b/ReportImp/PerspektivenEV/Invoicing/CollectiveInvoiceCreationBthg.cs
@@ -464,7 +464,7 @@ namespace PerspektivenEV.Invoicing
             }
             else if (cat.Abbreviation.Length > 1 && cat.Abbreviation.ToLower().Substring(cat.Abbreviation.Length - 2) == "ka")
             {
-                if (approvedBEPerInterval == null || approvedBEPerInterval.Value < 16)
+                if (approvedBEPerInterval == null || approvedBEPerInterval.Value < 15)
                 {
                     lg = 0;
                 }