Index: Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Data/GrassCoverErosionInwardsOutput.cs
===================================================================
diff -u -rdecccf5efb0ae872940d8d51b6de9978d13ecb37 -r07f3d67fe9512b3c8303ff09398b0a234900d546
--- Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Data/GrassCoverErosionInwardsOutput.cs	(.../GrassCoverErosionInwardsOutput.cs)	(revision decccf5efb0ae872940d8d51b6de9978d13ecb37)
+++ Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Data/GrassCoverErosionInwardsOutput.cs	(.../GrassCoverErosionInwardsOutput.cs)	(revision 07f3d67fe9512b3c8303ff09398b0a234900d546)
@@ -28,7 +28,7 @@
     /// <summary>
     /// The overall result of a grass cover erosion inwards assessment.
     /// </summary>
-    public class GrassCoverErosionInwardsOutput : Observable, ICalculationOutput
+    public class GrassCoverErosionInwardsOutput : CloneableObservable, ICalculationOutput
     {
         /// <summary>
         /// Creates a new instance of <see cref="GrassCoverErosionInwardsOutput"/>.
@@ -66,9 +66,9 @@
         /// </summary>
         public OvertoppingRateOutput OvertoppingRateOutput { get; private set; }
 
-        public object Clone()
+        public override object Clone()
         {
-            var clone = (GrassCoverErosionInwardsOutput) MemberwiseClone();
+            var clone = (GrassCoverErosionInwardsOutput) base.Clone();
 
             clone.OvertoppingOutput = (OvertoppingOutput) OvertoppingOutput.Clone();