diff --git a/Packages/Triangulation_2/include/CGAL/Triangulation_iterators_2.h b/Packages/Triangulation_2/include/CGAL/Triangulation_iterators_2.h
index 0ab2799737f..0e3e3df2217 100644
--- a/Packages/Triangulation_2/include/CGAL/Triangulation_iterators_2.h
+++ b/Packages/Triangulation_2/include/CGAL/Triangulation_iterators_2.h
@@ -151,7 +151,8 @@ public:
   typedef Triangulation_all_vertices_iterator_2<Gt,Tds>    All_vertices;
   typedef Triangulation_finite_vertices_iterator_2<Gt,Tds> Finite_vertices;
   // typedef Triangulation_2<Gt,Tds>                          Triangulation;
-  // typedef typename All_vertices::Triangulation             Triangulation;
+  typedef typename All_vertices::Triangulation             Triangulation;
+
 private:
   const Triangulation* _tr;