diff --git a/tokio/src/task/join_set.rs b/tokio/src/task/join_set.rs
index fdb9d266664..24d3717a26b 100644
--- a/tokio/src/task/join_set.rs
+++ b/tokio/src/task/join_set.rs
@@ -222,7 +222,7 @@ impl<T: 'static> JoinSet<T> {
     ///
     /// [task ID]: crate::task::Id
     /// [`JoinError::id`]: fn@crate::task::JoinError::id
-    #[cfg(unstable)]
+    #[cfg(tokio_unstable)]
     pub async fn join_next_with_id(&mut self) -> Option<Result<(Id, T), JoinError>> {
         crate::future::poll_fn(|cx| self.poll_join_next_with_id(cx)).await
     }