diff --git a/Boolean_set_operations_2/include/CGAL/connect_holes.h b/Boolean_set_operations_2/include/CGAL/connect_holes.h
index d6265bc83b7..b1129784299 100644
--- a/Boolean_set_operations_2/include/CGAL/connect_holes.h
+++ b/Boolean_set_operations_2/include/CGAL/connect_holes.h
@@ -134,7 +134,7 @@ OutputIterator connect_holes(const Polygon_with_holes_2<Kernel,
   // Construct the arrangement of all segments.
   Arrangement_2         arr;
 
-  insert_x_monotone_curves (arr, segments.begin(), segments.end());
+  insert (arr, segments.begin(), segments.end());
 
   // The resulting arrangment contains a single holes in the unbounded face,
   // which comprises a face f, with several holes in its interior.