diff --git a/library/alloc/src/vec.rs b/library/alloc/src/vec.rs
index 8526f15288fa4..4cad873190f6b 100644
--- a/library/alloc/src/vec.rs
+++ b/library/alloc/src/vec.rs
@@ -2956,6 +2956,11 @@ impl<T> Iterator for IntoIter<T> {
             if mem::size_of::<T>() == 0 { mem::zeroed() } else { ptr::read(self.ptr.add(i)) }
         }
     }
+
+    #[inline]
+    fn last(mut self) -> Option<T> {
+        self.next_back()
+    }
 }
 
 #[stable(feature = "rust1", since = "1.0.0")]