diff --git a/AABB_tree/include/CGAL/AABB_face_graph_triangle_primitive.h b/AABB_tree/include/CGAL/AABB_face_graph_triangle_primitive.h
index d1b2cba8fc4..e55afe41235 100644
--- a/AABB_tree/include/CGAL/AABB_face_graph_triangle_primitive.h
+++ b/AABB_tree/include/CGAL/AABB_face_graph_triangle_primitive.h
@@ -121,7 +121,7 @@ public:
   /*!
   Id type:
   - `boost::graph_traits<FaceGraph>::%face_descriptor` if `OneFaceGraphPerTree` is `CGAL::Tag_true`
-  - `std::pair<boost::graph_traits<FaceGraph>::%face_descriptor, FaceGraph>` if `OneFaceGraphPerTree` is `CGAL::Tag_false`
+  - `std::pair<boost::graph_traits<FaceGraph>::%face_descriptor, const FaceGraph*>` if `OneFaceGraphPerTree` is `CGAL::Tag_false`
   */
   unspecified_type Id;