diff --git a/Arrangement_on_surface_2/doc/Arrangement_on_surface_2/CGAL/Arr_Bezier_curve_traits_2.h b/Arrangement_on_surface_2/doc/Arrangement_on_surface_2/CGAL/Arr_Bezier_curve_traits_2.h
index 65fbed7df73..b7336d5c395 100644
--- a/Arrangement_on_surface_2/doc/Arrangement_on_surface_2/CGAL/Arr_Bezier_curve_traits_2.h
+++ b/Arrangement_on_surface_2/doc/Arrangement_on_surface_2/CGAL/Arr_Bezier_curve_traits_2.h
@@ -118,7 +118,7 @@ Curve_2 (InputIterator pts_begin, InputIterator pts_end);
 /*! 
 returns the number of control points that define `B`. 
 */ 
-size_t number_of_control_point () const; 
+size_t number_of_control_points () const; 
 
 /*! 
 returns the \f$ k\f$th control point. Note that the first control point equals 
diff --git a/Arrangement_on_surface_2/doc_tex/Arrangement_on_surface_2_ref/Arr_Bezier_traits.tex b/Arrangement_on_surface_2/doc_tex/Arrangement_on_surface_2_ref/Arr_Bezier_traits.tex
index b385c0d4c9a..8a660ab5fc4 100644
--- a/Arrangement_on_surface_2/doc_tex/Arrangement_on_surface_2_ref/Arr_Bezier_traits.tex
+++ b/Arrangement_on_surface_2/doc_tex/Arrangement_on_surface_2_ref/Arr_Bezier_traits.tex
@@ -104,7 +104,7 @@ assignment operator are supported as well.
 \ccAccessFunctions
 %-----------------
 
-\ccMethod{size_t number_of_control_point () const;}
+\ccMethod{size_t number_of_control_points () const;}
   {returns the number of control points that define \ccVar.}
 
 \ccMethod{typename RatKernel::Point_2 control_point (size_t k) const;}