Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Forms/Views/HeightStructuresFailureMechanismView.cs
===================================================================
diff -u -r737cd3675ab5bc1b6400e4a0b86ebd543eaee650 -r3014d0ced22c45300938639e7958ea0850485240
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Forms/Views/HeightStructuresFailureMechanismView.cs	(.../HeightStructuresFailureMechanismView.cs)	(revision 737cd3675ab5bc1b6400e4a0b86ebd543eaee650)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Forms/Views/HeightStructuresFailureMechanismView.cs	(.../HeightStructuresFailureMechanismView.cs)	(revision 3014d0ced22c45300938639e7958ea0850485240)
@@ -150,7 +150,7 @@
                     SetMapDataFeatures();
 
                     Map.Data = mapDataCollection;
-                    Map.BackgroundMapData = data.Parent.BackgroundMapData;
+                    Map.BackgroundMapData = (WmtsMapData)data.Parent.BackgroundMapData.MapData;
                 }
             }
         }