Index: Ringtoets/Common/src/Ringtoets.Common.Forms/PropertyClasses/LogNormalDistributionProperties.cs
===================================================================
diff -u -r68953cc654409e65478d6aa4fb8c1cf44b116d9d -rf808c0a7745d68543626578246691a6f1ec76aae
--- Ringtoets/Common/src/Ringtoets.Common.Forms/PropertyClasses/LogNormalDistributionProperties.cs	(.../LogNormalDistributionProperties.cs)	(revision 68953cc654409e65478d6aa4fb8c1cf44b116d9d)
+++ Ringtoets/Common/src/Ringtoets.Common.Forms/PropertyClasses/LogNormalDistributionProperties.cs	(.../LogNormalDistributionProperties.cs)	(revision f808c0a7745d68543626578246691a6f1ec76aae)
@@ -47,13 +47,13 @@
         /// marked as read-only.</param>
         /// <param name="observable">The object to be notified of changes to properties.
         /// Can be null if all properties are marked as read-only by <paramref name="propertiesReadOnly"/>.</param>
-        /// <param name="handler">The handler that is used to handle property changes.</param>
+        /// <param name="handler">Optional handler that is used to handle property changes.</param>
         /// <exception cref="ArgumentException">Thrown when <paramref name="observable"/>
         /// is null and any number of properties in this class is editable.</exception>
         public LogNormalDistributionProperties(
             DistributionPropertiesReadOnly propertiesReadOnly, 
             IObservable observable,
-            IChangeHandler handler)
+            IDistributionPropertyChangeHandler handler)
             : base(propertiesReadOnly, observable, handler) {}
 
         public override string DistributionType