Index: Application/Ringtoets/test/Application.Ringtoets.Storage.TestUtil/RingtoetsProjectTestHelper.cs
===================================================================
diff -u -rfada97a57c5c19983ffe23b02944dc48d02c509c -r20e9bfea15dfe132ee137283a9f24bc4c413ce4a
--- Application/Ringtoets/test/Application.Ringtoets.Storage.TestUtil/RingtoetsProjectTestHelper.cs	(.../RingtoetsProjectTestHelper.cs)	(revision fada97a57c5c19983ffe23b02944dc48d02c509c)
+++ Application/Ringtoets/test/Application.Ringtoets.Storage.TestUtil/RingtoetsProjectTestHelper.cs	(.../RingtoetsProjectTestHelper.cs)	(revision 20e9bfea15dfe132ee137283a9f24bc4c413ce4a)
@@ -582,7 +582,7 @@
             List<HydraulicBoundaryLocation> hydraulicBoundaryLocations = assessmentSection.HydraulicBoundaryDatabase.Locations;
 
             var heightStructure = new TestHeightStructure();
-            failureMechanism.HeightStructuresCollection.AddRange(new[]
+            failureMechanism.HeightStructures.AddRange(new[]
             {
                 heightStructure,
                 new TestHeightStructure("Structure B", "IdB")