diff --git a/library/core/src/iter/mod.rs b/library/core/src/iter/mod.rs
index b85841295dab1..7ca41d224a0a6 100644
--- a/library/core/src/iter/mod.rs
+++ b/library/core/src/iter/mod.rs
@@ -420,7 +420,7 @@ pub use self::adapters::{Intersperse, IntersperseWith};
     issue = "42168"
 )]
 pub use self::range::Step;
-#[unstable(feature = "iter_macro", issue = "none", reason = "generators are unstable")]
+#[unstable(feature = "iter_macro", issue = "142269", reason = "generators are unstable")]
 pub use self::sources::iter;
 #[stable(feature = "iter_empty", since = "1.2.0")]
 pub use self::sources::{Empty, empty};
diff --git a/library/core/src/iter/sources.rs b/library/core/src/iter/sources.rs
index fd9330201ff4e..8e27edb73c995 100644
--- a/library/core/src/iter/sources.rs
+++ b/library/core/src/iter/sources.rs
@@ -19,7 +19,7 @@ pub use self::empty::{Empty, empty};
 pub use self::from_coroutine::{FromCoroutine, from_coroutine};
 #[stable(feature = "iter_from_fn", since = "1.34.0")]
 pub use self::from_fn::{FromFn, from_fn};
-#[unstable(feature = "iter_macro", issue = "none", reason = "generators are unstable")]
+#[unstable(feature = "iter_macro", issue = "142269", reason = "generators are unstable")]
 pub use self::generator::iter;
 #[stable(feature = "iter_once", since = "1.2.0")]
 pub use self::once::{Once, once};
diff --git a/library/core/src/iter/sources/generator.rs b/library/core/src/iter/sources/generator.rs
index 0846974d526a9..94d501de033be 100644
--- a/library/core/src/iter/sources/generator.rs
+++ b/library/core/src/iter/sources/generator.rs
@@ -18,7 +18,7 @@
 /// let v: Vec<_> = it.collect();
 /// assert_eq!(v, [1, 2, 3]);
 /// ```
-#[unstable(feature = "iter_macro", issue = "none", reason = "generators are unstable")]
+#[unstable(feature = "iter_macro", issue = "142269", reason = "generators are unstable")]
 #[allow_internal_unstable(coroutines, iter_from_coroutine)]
 #[rustc_builtin_macro]
 pub macro iter($($t:tt)*) {