diff --git a/Arrangement_on_surface_2/include/CGAL/Arr_geometry_traits/Polyline_2.h b/Arrangement_on_surface_2/include/CGAL/Arr_geometry_traits/Polyline_2.h
index 1cb470b0d46..3feaa8db526 100644
--- a/Arrangement_on_surface_2/include/CGAL/Arr_geometry_traits/Polyline_2.h
+++ b/Arrangement_on_surface_2/include/CGAL/Arr_geometry_traits/Polyline_2.h
@@ -358,10 +358,10 @@ public:
 
   // TODO: This was added to handle the Split_2. Understand whether
   // also a reverse version should be implemented?
-  typedef typename Segments_container::iterator Segment_iterator;
+  // typedef typename Segments_container::iterator Segment_iterator;
 
-  Segment_iterator begin_segments()
-  { return m_segments.begin(); }
+  // Segment_iterator begin_segments()
+  // { return m_segments.begin(); }
 
   typedef typename Segments_container::const_iterator
     Segment_const_iterator;