diff --git a/src/liballoc/arc.rs b/src/liballoc/arc.rs
index 055029dddcd..e1f698cb484 100644
--- a/src/liballoc/arc.rs
+++ b/src/liballoc/arc.rs
@@ -263,6 +263,7 @@ impl<T: ?Sized> Arc<T> {
         loop {
             // check if the weak counter is currently "locked"; if so, spin.
             if cur == usize::MAX {
+                cur = this.inner().weak.load(Relaxed);
                 continue;
             }