diff --git a/AABB_tree/doc/AABB_tree/Concepts/AABBRayIntersectionGeomTraits_2.h b/AABB_tree/doc/AABB_tree/Concepts/AABBRayIntersectionGeomTraits_2.h
index b193d505fbd..15e3050edee 100644
--- a/AABB_tree/doc/AABB_tree/Concepts/AABBRayIntersectionGeomTraits_2.h
+++ b/AABB_tree/doc/AABB_tree/Concepts/AABBRayIntersectionGeomTraits_2.h
@@ -1,12 +1,11 @@
-3
 /*!
 \ingroup PkgAABBTreeConcepts
 \cgalConcept
 
 The concept `AABBRayIntersectionGeomTraits_2` is a refinement of the
-concept `AABBGeomTraits_2`. In addition to the types required by
+concept `AABBGeomTraits_2`. In addition to the types and functors required by
 `AABBGeomTraits_2` it also requires types and functors necessary to
-define the Intersection_distance functor.
+define the Intersection_distance functor (see `AABBRayIntersectionTraits`).
 
 \cgalRefines{AABBGeomTraits_2}
 
diff --git a/AABB_tree/doc/AABB_tree/Concepts/AABBRayIntersectionGeomTraits_3.h b/AABB_tree/doc/AABB_tree/Concepts/AABBRayIntersectionGeomTraits_3.h
index 84ef6de2260..1f6468c52b7 100644
--- a/AABB_tree/doc/AABB_tree/Concepts/AABBRayIntersectionGeomTraits_3.h
+++ b/AABB_tree/doc/AABB_tree/Concepts/AABBRayIntersectionGeomTraits_3.h
@@ -47,7 +47,7 @@ public:
   typedef unspecified_type Cartesian_const_iterator_3;
 
   /*!
-    A model of `ConstructCartesianConstIterator_33`.
+    A model of `ConstructCartesianConstIterator_3`.
    */
   typedef unspecified_type  Construct_cartesian_const_iterator_3;