diff --git a/AABB_tree/include/CGAL/AABB_tree.h b/AABB_tree/include/CGAL/AABB_tree.h
index f8034bc4837..25ad05d354d 100644
--- a/AABB_tree/include/CGAL/AABB_tree.h
+++ b/AABB_tree/include/CGAL/AABB_tree.h
@@ -125,7 +125,7 @@ namespace CGAL {
     Self& operator=(const Self&) = delete;
 
     /**
-     * @brief Builds the data structure from a sequence of primitives.
+     * @brief builds the data structure from a sequence of primitives.
      * @param first iterator over first primitive to insert
      * @param beyond past-the-end iterator
      *