Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresInput.cs
===================================================================
diff -u -r655bf07f2f48502ad49bb0980514db70dbe71704 -rd26a556cd48a6494079d88774977215ee2177274
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresInput.cs	(.../HeightStructuresInput.cs)	(revision 655bf07f2f48502ad49bb0980514db70dbe71704)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresInput.cs	(.../HeightStructuresInput.cs)	(revision d26a556cd48a6494079d88774977215ee2177274)
@@ -213,7 +213,7 @@
             {
                 if (double.IsNaN(value))
                 {
-                    structureNormalOrientation = new RoundedDouble(2, double.NaN);
+                    structureNormalOrientation = value.ToPrecision(structureNormalOrientation.NumberOfDecimalPlaces);
                     return;
                 }