diff --git a/Partition_2/include/CGAL/Partition_2/Rotation_tree_2.h b/Partition_2/include/CGAL/Partition_2/Rotation_tree_2.h
index 284dda6df73..8887bc4164b 100644
--- a/Partition_2/include/CGAL/Partition_2/Rotation_tree_2.h
+++ b/Partition_2/include/CGAL/Partition_2/Rotation_tree_2.h
@@ -47,7 +47,8 @@ public:
    typedef typename Traits::Point_2                Point_2;
 
    using internal::vector< Rotation_tree_node_2<Traits_> >::push_back;
-      using internal::vector< Rotation_tree_node_2<Traits_> >::back;
+   using internal::vector< Rotation_tree_node_2<Traits_> >::back;
+   using internal::vector< Rotation_tree_node_2<Traits_> >::erase;
 
    class Greater {
       typename Traits::Less_xy_2 less;