diff --git a/Surface_mesh_approximation/include/CGAL/Variational_shape_approximation.h b/Surface_mesh_approximation/include/CGAL/Variational_shape_approximation.h
index 566aec602d7..222a99f77e7 100644
--- a/Surface_mesh_approximation/include/CGAL/Variational_shape_approximation.h
+++ b/Surface_mesh_approximation/include/CGAL/Variational_shape_approximation.h
@@ -1959,7 +1959,7 @@ private:
   /*!
    * @brief checks if a vertex is attached with an anchor.
    * @tparam VertexAnchorIndexMap `ReadablePropertyMap`
-   * with `boost::graph_traights<TriangleMesh>::vertex_descriptor` as key and `std::size_t` as value type
+   * with `boost::graph_traits<TriangleMesh>::vertex_descriptor` as key and `std::size_t` as value type
    * @param vtx a vertex descriptor
    * @param vanchor_map vertex anchor index map
    */
diff --git a/Triangulation_3/doc/Triangulation_3/CGAL/link_to_face_graph.h b/Triangulation_3/doc/Triangulation_3/CGAL/link_to_face_graph.h
index 0ca74d3f6ba..484ae1296c0 100644
--- a/Triangulation_3/doc/Triangulation_3/CGAL/link_to_face_graph.h
+++ b/Triangulation_3/doc/Triangulation_3/CGAL/link_to_face_graph.h
@@ -26,7 +26,7 @@ fills the face graph `tm` with the <A HREF="https://en.wikipedia.org/wiki/Simpli
 
 */
 template <class Triangulation, class TriangleMesh>
-typename boost::graph_trait<FG>::vertex_descriptor
+typename boost::graph_traits<FG>::vertex_descriptor
 link_to_face_graph(const Triangulation& t,
                    typename Triangulation::Vertex_handle vh,
                    TriangleMesh& tm,