1 files changed, 5 insertions, 0 deletions
diff --git a/library/std/src/sync/barrier.rs b/library/std/src/sync/barrier.rs
index 712ce03f90b..47d63c57ff1 100644
--- a/library/std/src/sync/barrier.rs
+++ b/library/std/src/sync/barrier.rs
@@ -1,3 +1,5 @@
+use core::panic::RefUnwindSafe;
+
 use crate::fmt;
 use crate::sync::nonpoison::{Condvar, Mutex};
 
@@ -31,6 +33,9 @@ pub struct Barrier {
     num_threads: usize,
 }
 
+#[stable(feature = "rust1", since = "1.0.0")]
+impl RefUnwindSafe for Barrier {}
+
 // The inner state of a double barrier
 struct BarrierState {
     count: usize,