diff --git a/src/core/typeless.rs b/src/core/typeless.rs
index 1b94713..9ebf535 100644
--- a/src/core/typeless.rs
+++ b/src/core/typeless.rs
@@ -170,7 +170,7 @@ impl<'a> TypelessError<'a> {
     }
 }
 
-pub trait MentionableExt<'a, Ctx: 'a + Context>: Mentionable<'a, Ctx> {
+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>>>;
 }