diff --git a/src/rcore/demoted.rs b/src/rcore/demoted.rs
index a693c16..f8ea809 100644
--- a/src/rcore/demoted.rs
+++ b/src/rcore/demoted.rs
@@ -1,6 +1,6 @@
 use super::*;
 
-/// Demoted [`InCtx`], returned by [`InCtx::demote`]. Use when a concrete type required.
+/// Demoted [`InCtx`], returned by [`InCtx::demote`]. Use when a concrete type is required.
 pub struct Demoted<'a: 'c, 'c, Ctx: Context<'a>>(pub(super) &'c mut dyn DeCtx<'a, Ctx>);
 
 impl<'a: 'c, 'c, Ctx: Context<'a>> Stream for Demoted<'a, 'c, Ctx> {