Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresInput.cs
===================================================================
diff -u -r41a37c93cb0b3e36ff7023c9f42b4e6225598b55 -r7a6c07ce4fcb7887319744836e0b513709187445
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresInput.cs	(.../HeightStructuresInput.cs)	(revision 41a37c93cb0b3e36ff7023c9f42b4e6225598b55)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresInput.cs	(.../HeightStructuresInput.cs)	(revision 7a6c07ce4fcb7887319744836e0b513709187445)
@@ -46,7 +46,7 @@
                 StandardDeviation = (RoundedDouble) 0.05
             };
 
-            deviationWaveDirection = new RoundedDouble(2, double.NaN);
+            deviationWaveDirection = new RoundedDouble(2);
         }
 
         #region Hydraulic data