diff --git a/src/rcore/modes.rs b/src/rcore/modes.rs
index 48ca48a..0c82092 100644
--- a/src/rcore/modes.rs
+++ b/src/rcore/modes.rs
@@ -221,6 +221,7 @@ impl<T: ?Sized + ImplMode> WithParseMode for T {
     type WithMode = WithMode<Self, <Self as ParseMode>::Mode>;
 }
 
+/// Used as [`WithParseMode::WithMode`].
 pub struct WithMode<T: ?Sized, M: ?Sized>(PhantomData<M>, T);
 
 impl<'a, Ctx: Context<'a>, F: FactoryModeParse<'a, Ctx>> FactoryParse<'a, Ctx> for F {