Index: Ringtoets/Common/src/Ringtoets.Common.Data/AssessmentSectionBase.cs
===================================================================
diff -u -r01f52f7e7b49e5353c0fe2583ad9d906a047c5b5 -r019c82bf6273ff150976c8c2ea9b895258951455
--- Ringtoets/Common/src/Ringtoets.Common.Data/AssessmentSectionBase.cs	(.../AssessmentSectionBase.cs)	(revision 01f52f7e7b49e5353c0fe2583ad9d906a047c5b5)
+++ Ringtoets/Common/src/Ringtoets.Common.Data/AssessmentSectionBase.cs	(.../AssessmentSectionBase.cs)	(revision 019c82bf6273ff150976c8c2ea9b895258951455)
@@ -55,7 +55,7 @@
         /// <summary>
         /// Gets or sets the contribution of each failure mechanism available in this assessment section.
         /// </summary>
-        public FailureMechanismContribution FailureMechanismContribution { get; protected set; }
+        public virtual FailureMechanismContribution FailureMechanismContribution { get; protected set; }
 
         /// <summary>
         /// Gets or sets the hydraulic boundary database.