Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/HeightStructuresPlugin.cs
===================================================================
diff -u -r7fb7b486bcbdd216ef834eaed0c89a1362e119e2 -r277048d204ab4cfad4aa5de4d57ef38b56642c25
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/HeightStructuresPlugin.cs	(.../HeightStructuresPlugin.cs)	(revision 7fb7b486bcbdd216ef834eaed0c89a1362e119e2)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Plugin/HeightStructuresPlugin.cs	(.../HeightStructuresPlugin.cs)	(revision 277048d204ab4cfad4aa5de4d57ef38b56642c25)
@@ -70,7 +70,7 @@
             yield return new PropertyInfo<HeightStructure, HeightStructureProperties>();
             yield return new PropertyInfo<HeightStructuresInputContext, HeightStructuresInputContextProperties>
             {
-                CreateInstance = context => new HeightStructuresInputContextProperties(context, new CalculationInputPropertyChangeHandler())
+                CreateInstance = context => new HeightStructuresInputContextProperties(context, new ObservablePropertyChangeHandler(context.Calculation))
             };
         }