1 files changed, 3 insertions, 2 deletions
diff --git a/src/liballoc/rc.rs b/src/liballoc/rc.rs
index 8fb8e111754..d0188c6e828 100644
--- a/src/liballoc/rc.rs
+++ b/src/liballoc/rc.rs
@@ -681,7 +681,8 @@ impl<T: ?Sized> Rc<T> {
 
     fn from_box(v: Box<T>) -> Rc<T> {
         unsafe {
-            let bptr = Box::into_raw(v);
+            let box_unique = Box::into_unique(v);
+            let bptr = box_unique.as_ptr();
 
             let value_size = size_of_val(&*bptr);
             let ptr = Self::allocate_for_ptr(bptr);
@@ -693,7 +694,7 @@ impl<T: ?Sized> Rc<T> {
                 value_size);
 
             // Free the allocation without dropping its contents
-            box_free(bptr);
+            box_free(box_unique);
 
             Rc { ptr: NonNull::new_unchecked(ptr), phantom: PhantomData }
         }