diff --git a/Triangulation_3/TODO b/Triangulation_3/TODO
index 34dd42f6285..704248446a3 100644
--- a/Triangulation_3/TODO
+++ b/Triangulation_3/TODO
@@ -44,6 +44,7 @@ Delaunay
 des tetraedres presque plats) rounding ?
 
 Regular :
+- acces aux hidden points et remove sur hidden points, etc
 - Regular_triangulation_euclidean_traits_3.h
   add  a functor Construct_smallest_orthogonal_weighted_point_3
   to build at the same time both the center and the square radius