Index: Ringtoets/Piping/src/Ringtoets.Piping.Data/PipingFailureMechanism.cs
===================================================================
diff -u -rd82fa09fe9ae053ce7702ba89ef23ae029640d1b -r0c05978e0502e47090bffa6f5716c91dae3e7150
--- Ringtoets/Piping/src/Ringtoets.Piping.Data/PipingFailureMechanism.cs	(.../PipingFailureMechanism.cs)	(revision d82fa09fe9ae053ce7702ba89ef23ae029640d1b)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Data/PipingFailureMechanism.cs	(.../PipingFailureMechanism.cs)	(revision 0c05978e0502e47090bffa6f5716c91dae3e7150)
@@ -79,7 +79,7 @@
         /// <summary>
         /// Gets the available profiles within the scope of the piping failure mechanism.
         /// </summary>
-        public ICollection<PipingSoilProfile> SoilProfiles { get; private set; }
+        public ObservableList<PipingSoilProfile> SoilProfiles { get; private set; }
 
         /// <summary>
         /// Gets all available piping calculations.