Index: Ringtoets/Common/src/Ringtoets.Common.IO/FileImporters/FailureMechanismSectionsImporter.cs
===================================================================
diff -u -r0a3fd8cb958f94f9985da277c4e9cb2b9a143ee5 -r021d40706f66c1e556d689963182da28f8105cc4
--- Ringtoets/Common/src/Ringtoets.Common.IO/FileImporters/FailureMechanismSectionsImporter.cs	(.../FailureMechanismSectionsImporter.cs)	(revision 0a3fd8cb958f94f9985da277c4e9cb2b9a143ee5)
+++ Ringtoets/Common/src/Ringtoets.Common.IO/FileImporters/FailureMechanismSectionsImporter.cs	(.../FailureMechanismSectionsImporter.cs)	(revision 021d40706f66c1e556d689963182da28f8105cc4)
@@ -228,10 +228,7 @@
             IEnumerable<FailureMechanismSection> snappedSections = SnapReadSectionsToReferenceLine(failureMechanismSections, referenceLine);
 
             ImportTarget.ClearAllSections();
-            foreach (FailureMechanismSection section in snappedSections)
-            {
-                ImportTarget.AddSection(section);
-            }
+            ImportTarget.AddSections(snappedSections);
         }
 
         private static IEnumerable<FailureMechanismSection> SnapReadSectionsToReferenceLine(IEnumerable<FailureMechanismSection> failureMechanismSections,