Index: Ringtoets/Common/src/Ringtoets.Common.IO/ReferenceLines/IReferenceLineReplaceHandler.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r00b160ed6c781f5f20b3697143c255fc498b0ef1
--- Ringtoets/Common/src/Ringtoets.Common.IO/ReferenceLines/IReferenceLineReplaceHandler.cs	(.../IReferenceLineReplaceHandler.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Common/src/Ringtoets.Common.IO/ReferenceLines/IReferenceLineReplaceHandler.cs	(.../IReferenceLineReplaceHandler.cs)	(revision 00b160ed6c781f5f20b3697143c255fc498b0ef1)
@@ -42,10 +42,10 @@
         /// Replaces the <see cref="ReferenceLine"/> of a <see cref="IAssessmentSection"/>
         /// and propagates the changes to underlying data structure.
         /// </summary>
-        /// <param name="section">The section to be updated.</param>
+        /// <param name="oldReferenceLine">The reference line to be updated.</param>
         /// <param name="newReferenceLine">The new reference line.</param>
         /// <returns>All objects that have been affected by the replacement.</returns>
-        IEnumerable<IObservable> Replace(IAssessmentSection section, ReferenceLine newReferenceLine);
+        IEnumerable<IObservable> Replace(ReferenceLine oldReferenceLine, ReferenceLine newReferenceLine);
 
         /// <summary>
         /// Perform post-replacement updates.