Index: Ringtoets/Piping/src/Ringtoets.Piping.Data/PipingCalculation.cs
===================================================================
diff -u -r7c3056aafbb670d79d239ef3d38e9d942bc33498 -rb4e3629ea2130359117dd403af8db3c8ae0c680b
--- Ringtoets/Piping/src/Ringtoets.Piping.Data/PipingCalculation.cs	(.../PipingCalculation.cs)	(revision 7c3056aafbb670d79d239ef3d38e9d942bc33498)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Data/PipingCalculation.cs	(.../PipingCalculation.cs)	(revision b4e3629ea2130359117dd403af8db3c8ae0c680b)
@@ -42,7 +42,7 @@
         {
             Name = RingtoetsCommonDataResources.Calculation_DefaultName;
             InputParameters = new PipingInput(generalInputParameters);
-            Comments = new Commentable();
+            Comments = new Comment();
         }
 
         /// <summary>
@@ -70,7 +70,7 @@
             }
         }
 
-        public Commentable Comments { get; private set; }
+        public Comment Comments { get; private set; }
 
         public void ClearOutput()
         {