Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/TreeNodeInfos/HydraulicBoundaryDatabaseContextTreeNodeInfoTest.cs
===================================================================
diff -u -r5169b12fc5f885c17e1c6eb6ae459c5d46adfb68 -rca1732823162ab0737aaa369900a674c86d08083
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/TreeNodeInfos/HydraulicBoundaryDatabaseContextTreeNodeInfoTest.cs	(.../HydraulicBoundaryDatabaseContextTreeNodeInfoTest.cs)	(revision 5169b12fc5f885c17e1c6eb6ae459c5d46adfb68)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/TreeNodeInfos/HydraulicBoundaryDatabaseContextTreeNodeInfoTest.cs	(.../HydraulicBoundaryDatabaseContextTreeNodeInfoTest.cs)	(revision ca1732823162ab0737aaa369900a674c86d08083)
@@ -601,6 +601,8 @@
             var waveHeightCalculationsForMechanismSpecificSignalingNormObserver = mocks.StrictMock<IObserver>();
             var waveHeightCalculationsForMechanismSpecificLowerLimitNormObserver = mocks.StrictMock<IObserver>();
 
+            var duneLocationsObserver = mocks.StrictMock<IObserver>();
+
             assessmentSection.HydraulicBoundaryDatabase.Attach(hydraulicBoundaryDatabaseObserver);
             assessmentSection.HydraulicBoundaryDatabase.Locations.Attach(hydraulicBoundaryLocationsObserver);
 
@@ -622,6 +624,8 @@
             assessmentSection.GrassCoverErosionOutwards.WaveHeightCalculationsForMechanismSpecificSignalingNorm.Attach(waveHeightCalculationsForMechanismSpecificSignalingNormObserver);
             assessmentSection.GrassCoverErosionOutwards.WaveHeightCalculationsForMechanismSpecificLowerLimitNorm.Attach(waveHeightCalculationsForMechanismSpecificLowerLimitNormObserver);
 
+            assessmentSection.DuneErosion.DuneLocations.Attach(duneLocationsObserver);
+
             if (expectUpdateObserver)
             {
                 hydraulicBoundaryDatabaseObserver.Expect(o => o.UpdateObserver());
@@ -644,6 +648,8 @@
                 waveHeightCalculationsForMechanismSpecificFactorizedSignalingNormObserver.Expect(o => o.UpdateObserver());
                 waveHeightCalculationsForMechanismSpecificSignalingNormObserver.Expect(o => o.UpdateObserver());
                 waveHeightCalculationsForMechanismSpecificLowerLimitNormObserver.Expect(o => o.UpdateObserver());
+
+                duneLocationsObserver.Expect(o => o.UpdateObserver());
             }
         }