diff --git a/library/core/src/iter/sources/from_coroutine.rs b/library/core/src/iter/sources/from_coroutine.rs
index bf413b24d4177..16fbca9b65e7d 100644
--- a/library/core/src/iter/sources/from_coroutine.rs
+++ b/library/core/src/iter/sources/from_coroutine.rs
@@ -11,7 +11,8 @@ use crate::pin::Pin;
 /// # Examples
 ///
 /// ```
-/// #![feature(coroutines)]
+/// #![cfg_attr(bootstrap, feature(generators))]
+/// #![cfg_attr(not(bootstrap), feature(coroutines))]
 /// #![feature(iter_from_coroutine)]
 ///
 /// let it = std::iter::from_coroutine(|| {
diff --git a/library/core/src/ops/coroutine.rs b/library/core/src/ops/coroutine.rs
index 4847c05271267..e01a893a06853 100644
--- a/library/core/src/ops/coroutine.rs
+++ b/library/core/src/ops/coroutine.rs
@@ -40,7 +40,9 @@ pub enum CoroutineState<Y, R> {
 /// closure-like:
 ///
 /// ```rust
-/// #![feature(coroutines, coroutine_trait)]
+/// #![cfg_attr(bootstrap, feature(generators))]
+/// #![cfg_attr(not(bootstrap), feature(coroutines))]
+/// #![feature(coroutine_trait)]
 ///
 /// use std::ops::{Coroutine, CoroutineState};
 /// use std::pin::Pin;
diff --git a/library/core/src/pin.rs b/library/core/src/pin.rs
index 322b455841b5f..bca97d4ee3643 100644
--- a/library/core/src/pin.rs
+++ b/library/core/src/pin.rs
@@ -1088,7 +1088,9 @@ impl<P, U> DispatchFromDyn<Pin<U>> for Pin<P> where P: DispatchFromDyn<U> {}
 /// ### With `Coroutine`s
 ///
 /// ```rust
-/// #![feature(coroutines, coroutine_trait)]
+/// #![cfg_attr(bootstrap, feature(generators))]
+/// #![cfg_attr(not(bootstrap), feature(coroutines))]
+/// #![feature(coroutine_trait)]
 /// use core::{
 ///     ops::{Coroutine, CoroutineState},
 ///     pin::pin,