Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Services/HydraRingCalculationService.cs
===================================================================
diff -u -r67100b9ae4581855aa4b6e1675c3fdf550614c7a -r3329efc302973bbf3f363e612f7ea5dda8ac9637
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Services/HydraRingCalculationService.cs	(.../HydraRingCalculationService.cs)	(revision 67100b9ae4581855aa4b6e1675c3fdf550614c7a)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Services/HydraRingCalculationService.cs	(.../HydraRingCalculationService.cs)	(revision 3329efc302973bbf3f363e612f7ea5dda8ac9637)
@@ -63,13 +63,13 @@
 
         private static T PerformCalculation<T>(string hlcdDirectory, string ringId, HydraRingTimeIntegrationSchemeType timeIntegrationSchemeType, HydraRingUncertaintiesType uncertaintiesType, HydraRingCalculationInput hydraRingCalculationInput, Func<string, string, T> parseFunction)
         {
-            var hydraulicBoundaryLocationId = hydraRingCalculationInput.HydraulicBoundaryLocationId;
+            var sectionId = hydraRingCalculationInput.DikeSection.SectionId;
 
             // Create a working directory
-            var workingDirectory = CreateWorkingDirectory(hydraulicBoundaryLocationId.ToString());
+            var workingDirectory = CreateWorkingDirectory(sectionId.ToString());
 
             // Write the initialization script
-            var hydraRingInitializationService = new HydraRingInitializationService(hydraRingCalculationInput.FailureMechanismType, hydraulicBoundaryLocationId, hlcdDirectory, workingDirectory);
+            var hydraRingInitializationService = new HydraRingInitializationService(hydraRingCalculationInput.FailureMechanismType, sectionId, hlcdDirectory, workingDirectory);
             File.WriteAllText(hydraRingInitializationService.IniFilePath, hydraRingInitializationService.GenerateInitializationScript());
 
             // Write the database creation script