diff --git a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2/MyWindow_files.cpp b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2/MyWindow_files.cpp
index 94808f5e416..e7771e9e55e 100644
--- a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2/MyWindow_files.cpp
+++ b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2/MyWindow_files.cpp
@@ -312,7 +312,7 @@ void MyWindow::load( const QString& filename , bool clear_flag )
     Conic_reader<Conic_traits>  reader;
     std::list<Arr_conic_2>               curve_list;
     reader.read_data(filename, std::back_inserter(curve_list), w_demo->bbox);
-    CGAL::insert_curves (*(w_demo_p->m_curves_arr), curve_list.begin(), curve_list.end());
+    CGAL::insert (*(w_demo_p->m_curves_arr), curve_list.begin(), curve_list.end());
   }
 
   else if (w_demo->traits_type == POLYLINE_TRAITS)
@@ -351,7 +351,7 @@ void MyWindow::load( const QString& filename , bool clear_flag )
 
       pol_list.push_back(curve);
     }
-    CGAL::insert_curves(*(w_demo_p->m_curves_arr), pol_list.begin(), pol_list.end());
+    CGAL::insert(*(w_demo_p->m_curves_arr), pol_list.begin(), pol_list.end());
   }
 
   else if (w_demo->traits_type == SEGMENT_TRAITS)
@@ -384,7 +384,7 @@ void MyWindow::load( const QString& filename , bool clear_flag )
       seg_list.push_back(curve);
     }
 
-    CGAL::insert_curves(*(w_demo_p->m_curves_arr), seg_list.begin(), seg_list.end());
+    CGAL::insert(*(w_demo_p->m_curves_arr), seg_list.begin(), seg_list.end());
   }
   w_demo->set_window(w_demo->bbox.xmin() , w_demo->bbox.xmax() ,
                      w_demo->bbox.ymin() , w_demo->bbox.ymax());
diff --git a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2/demo_tab.h b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2/demo_tab.h
index 65ea40d85c9..92b1b52f387 100644
--- a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2/demo_tab.h
+++ b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2/demo_tab.h
@@ -1757,7 +1757,7 @@ public:
     Arr_seg_point_2 source(coord_source.x(), coord_source.y());
     Arr_seg_point_2 target(coord_target.x(), coord_target.y());
     Arr_seg_2 seg (source, target);
-    CGAL::insert_curve(*(w->m_curves_arr), seg);
+    CGAL::insert(*(w->m_curves_arr), seg);
     CGAL::Bbox_2 curve_bbox = seg.bbox();
     w->bbox = w->bbox + curve_bbox;
   }
@@ -2238,7 +2238,7 @@ private:
   void get_polyline(Qt_widget_demo_tab<Polyline_tab_traits> * w)
   {
     Arr_pol_2  pol (points.begin(), points.end());
-    CGAL::insert_curve(*(w->m_curves_arr), pol);
+    CGAL::insert(*(w->m_curves_arr), pol);
     CGAL::Bbox_2 curve_bbox = pol.bbox();
     w->bbox = w->bbox + curve_bbox;
   }
@@ -2750,7 +2750,7 @@ public:
         break;
       }
 
-      CGAL::insert_curve(*(w->m_curves_arr), cv);
+      CGAL::insert(*(w->m_curves_arr), cv);
       CGAL::Bbox_2 curve_bbox = cv.bbox();
       w->bbox = w->bbox + curve_bbox;
       w->active = false;