1 files changed, 1 insertions, 1 deletions
diff --git a/src/liballoc/sync.rs b/src/liballoc/sync.rs
index a00b6b4e435..2cd7898f4c7 100644
--- a/src/liballoc/sync.rs
+++ b/src/liballoc/sync.rs
@@ -672,7 +672,7 @@ impl<T: Clone> ArcFromSlice<T> for Arc<[T]> {
             };
 
             for (i, item) in v.iter().enumerate() {
-                ptr::write(elems.offset(i as isize), item.clone());
+                ptr::write(elems.add(i), item.clone());
                 guard.n_elems += 1;
             }