diff --git a/src/std/ctypeless.rs b/src/std/ctypeless.rs
index 56c7798..4fbd208 100644
--- a/src/std/ctypeless.rs
+++ b/src/std/ctypeless.rs
@@ -112,7 +112,7 @@ impl<'a, Ctx: 'a + Context> TypelessMentionable<'a, Ctx> {
     pub fn from_typed<A: Mentionable<'a, Ctx>>(mentionable: Rc<A>) -> Self {
         let factory = TypelessFactory::from_typed(mentionable.factory());
         let topology = mentionable.topology();
-        let points = mentionable.points_vec();
+        let points = mentionable.points_vec_2();
         TypelessMentionable {
             t_serialize: Box::new(move |serializer| mentionable.serialize(serializer)),
             t_factory: factory,
@@ -167,16 +167,3 @@ impl<'a> TypelessError<'a> {
         TypelessError(Box::new(error))
     }
 }
-
-trait MentionableExt<'a, Ctx: 'a + Context>: Mentionable<'a, Ctx> {
-    /// [Vec] of [Point]s as used by [`Mentionable::topology`].
-    fn points_vec(&self) -> Vec<Point<'a, Ctx, TypelessMentionable<'a, Ctx>>>;
-}
-
-impl<'a, Ctx: 'a + Context, A: Mentionable<'a, Ctx>> MentionableExt<'a, Ctx> for A {
-    fn points_vec(&self) -> Vec<Point<'a, Ctx, TypelessMentionable<'a, Ctx>>> {
-        let mut points = Vec::new();
-        self.points_typeless(&mut points);
-        points
-    }
-}