Index: Ringtoets/Piping/src/Ringtoets.Piping.IO/Importers/PipingCalculationConfigurationImporter.cs
===================================================================
diff -u -r5a0ad0f264935355e5739924708870db8513d5c1 -r3f8a98df037e5ab1623b4d786a37bf3797b85f78
--- Ringtoets/Piping/src/Ringtoets.Piping.IO/Importers/PipingCalculationConfigurationImporter.cs	(.../PipingCalculationConfigurationImporter.cs)	(revision 5a0ad0f264935355e5739924708870db8513d5c1)
+++ Ringtoets/Piping/src/Ringtoets.Piping.IO/Importers/PipingCalculationConfigurationImporter.cs	(.../PipingCalculationConfigurationImporter.cs)	(revision 3f8a98df037e5ab1623b4d786a37bf3797b85f78)
@@ -79,7 +79,7 @@
             return new PipingCalculationConfigurationReader(xmlFilePath);
         }
 
-        protected override ICalculationBase ParseReadCalculation(ReadPipingCalculation readCalculation)
+        protected override ICalculation ParseReadCalculation(ReadPipingCalculation readCalculation)
         {
             var pipingCalculation = new PipingCalculationScenario(new GeneralPipingInput())
             {