diff --git a/Arrangement_on_surface_2/include/CGAL/Arr_extended_rational_arc_traits_d_1.h b/Arrangement_on_surface_2/include/CGAL/Arr_extended_rational_arc_traits_d_1.h
index 704457947b2..f00ecf9a481 100644
--- a/Arrangement_on_surface_2/include/CGAL/Arr_extended_rational_arc_traits_d_1.h
+++ b/Arrangement_on_surface_2/include/CGAL/Arr_extended_rational_arc_traits_d_1.h
@@ -31,7 +31,6 @@
 #include "boost/variant.hpp"
 
 #include <CGAL/Arr_ver_support/Rational_arc_with_ver_d_1.h>
-//#include "Rational_arc_with_ver_d_1.h"
 
 namespace CGAL {
 
diff --git a/Arrangement_on_surface_2/include/CGAL/Arr_ver_support/Rational_arc_with_ver_d_1.h b/Arrangement_on_surface_2/include/CGAL/Arr_ver_support/Rational_arc_with_ver_d_1.h
index 1addd6051c0..9a2f4bb4739 100644
--- a/Arrangement_on_surface_2/include/CGAL/Arr_ver_support/Rational_arc_with_ver_d_1.h
+++ b/Arrangement_on_surface_2/include/CGAL/Arr_ver_support/Rational_arc_with_ver_d_1.h
@@ -26,7 +26,6 @@
 
 #include "boost/variant.hpp"
 #include <CGAL/Arr_ver_support/Visitors_d_1.h>
-//#include "Visitors_d_1.h"
 
 namespace CGAL {
 namespace Arr_vertical_rational_arc {