Index: Ringtoets/Common/src/Ringtoets.Common.Service/DesignWaterLevelCalculationService.cs
===================================================================
diff -u -r84dcc2c2dfc224ad20285f74b6c7b20f5f49d2b2 -r17dd865ebeac34b0d00e80d5a4afcea40c2dc83a
--- Ringtoets/Common/src/Ringtoets.Common.Service/DesignWaterLevelCalculationService.cs	(.../DesignWaterLevelCalculationService.cs)	(revision 84dcc2c2dfc224ad20285f74b6c7b20f5f49d2b2)
+++ Ringtoets/Common/src/Ringtoets.Common.Service/DesignWaterLevelCalculationService.cs	(.../DesignWaterLevelCalculationService.cs)	(revision 17dd865ebeac34b0d00e80d5a4afcea40c2dc83a)
@@ -170,7 +170,7 @@
                                                        converged);
         }
 
-        private AssessmentLevelCalculationInput CreateInput(HydraulicBoundaryLocation hydraulicBoundaryLocation,
+        private static AssessmentLevelCalculationInput CreateInput(HydraulicBoundaryLocation hydraulicBoundaryLocation,
                                                             double norm,
                                                             string hydraulicBoundaryDatabaseFilePath)
         {