Index: Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Integration.Test/HeightStructuresCalculationActivityIntegrationTest.cs
===================================================================
diff -u -r3507fb0dc4848167faeb5a7cb4d1b01a7b78e98b -r41a37c93cb0b3e36ff7023c9f42b4e6225598b55
--- Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Integration.Test/HeightStructuresCalculationActivityIntegrationTest.cs	(.../HeightStructuresCalculationActivityIntegrationTest.cs)	(revision 3507fb0dc4848167faeb5a7cb4d1b01a7b78e98b)
+++ Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Integration.Test/HeightStructuresCalculationActivityIntegrationTest.cs	(.../HeightStructuresCalculationActivityIntegrationTest.cs)	(revision 41a37c93cb0b3e36ff7023c9f42b4e6225598b55)
@@ -205,7 +205,7 @@
                     Structure = new TestHeightStructure()
                 }
             };
-            calculation.InputParameters.DeviationWaveDirection = (RoundedDouble) double.NaN;
+            calculation.InputParameters.DeviationWaveDirection = RoundedDouble.NaN;
 
             var activity = new HeightStructuresCalculationActivity(calculation, testDataPath, failureMechanism, assessmentSection);
 
@@ -252,7 +252,7 @@
                     Structure = new TestHeightStructure()
                 }
             };
-            calculation.InputParameters.StructureNormalOrientation = (RoundedDouble) double.NaN;
+            calculation.InputParameters.StructureNormalOrientation = RoundedDouble.NaN;
 
             var activity = new HeightStructuresCalculationActivity(calculation, testDataPath, failureMechanism, assessmentSection);
             // Call