Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresInput.cs
===================================================================
diff -u -r1a6804681b0758a5761e39099e4b6de65f9cf4a2 -r41a37c93cb0b3e36ff7023c9f42b4e6225598b55
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresInput.cs	(.../HeightStructuresInput.cs)	(revision 1a6804681b0758a5761e39099e4b6de65f9cf4a2)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresInput.cs	(.../HeightStructuresInput.cs)	(revision 41a37c93cb0b3e36ff7023c9f42b4e6225598b55)
@@ -42,7 +42,7 @@
         {
             levelCrestStructure = new NormalDistribution(2)
             {
-                Mean = (RoundedDouble) double.NaN,
+                Mean = RoundedDouble.NaN,
                 StandardDeviation = (RoundedDouble) 0.05
             };