Index: Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Handlers/FailureMechanismContributionNormChangeHandler.cs
===================================================================
diff -u -r0a5a1c7fad7e52c152e3ff34eebcccf7785b377d -ra1bfcaebf502a6dca18c0256d692e8c94130327a
--- Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Handlers/FailureMechanismContributionNormChangeHandler.cs	(.../FailureMechanismContributionNormChangeHandler.cs)	(revision 0a5a1c7fad7e52c152e3ff34eebcccf7785b377d)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Handlers/FailureMechanismContributionNormChangeHandler.cs	(.../FailureMechanismContributionNormChangeHandler.cs)	(revision a1bfcaebf502a6dca18c0256d692e8c94130327a)
@@ -60,7 +60,7 @@
             }
 
             var changedObjects = new List<IObservable>();
-            if (assessmentSection.FailureMechanismContribution.Norm.CompareTo(newNormValue) != 0)
+            if (!assessmentSection.FailureMechanismContribution.Norm.Equals(newNormValue))
             {
                 assessmentSection.FailureMechanismContribution.Norm = newNormValue;