diff --git a/ReportImp/HausDuelken/Validation/ServiceRecordValidator.cs b/ReportImp/HausDuelken/Validation/ServiceRecordValidator.cs
index 743c27333..23cb69af7 100644
--- a/ReportImp/HausDuelken/Validation/ServiceRecordValidator.cs
+++ b/ReportImp/HausDuelken/Validation/ServiceRecordValidator.cs
@@ -27,6 +27,25 @@ namespace KetteReports.Validation
 			return new[] { "Arbeitszeit", "Pause" };
 		}
 
+        public override List<ServiceRecordValidationResultDC> ValidateServiceRecord(ServiceRecordDC newServiceRecord, SupportConceptStatisticsDC statistics, int maxDaysEditServiceRecordsAllowed, IList<long> employeeOids, IList<long> cb2scOids)
+        {
+            var results = base.ValidateServiceRecord(newServiceRecord, statistics, maxDaysEditServiceRecordsAllowed, employeeOids, cb2scOids);
+
+            if (newServiceRecord.RoundedDuration == 0)
+            {
+                results.Add(new ServiceRecordValidationResultDC()
+                {
+                    Allow = false,
+                    CustomerName = newServiceRecord.Customer != null ? newServiceRecord.Customer.LastNameFirstName : "",
+                    EmployeeName = newServiceRecord.Employee != null ? newServiceRecord.Employee.FirstNameLastName : "",
+                    Message = "Einträge mit einer Dauer von 0 Minuten können nicht gespeichert werden.",
+                    ResultType =  ServiceRecordValidationResult.Custom,
+                }); 
+            }
+
+            return results;
+        }
+
         public override ServiceRecordValidationResultDC CheckOverlappingCustomerServiceRecords(ServiceRecordDC newServiceRecord, DateTime start, IList<ServiceRecord> allCustomerRecords, bool isGroupRecord, decimal roundedDuration)
         {