diff --git a/src/liballoc/vec_deque.rs b/src/liballoc/vec_deque.rs
index bf906920029..00def2a1eac 100644
--- a/src/liballoc/vec_deque.rs
+++ b/src/liballoc/vec_deque.rs
@@ -459,10 +459,12 @@ impl<T> VecDeque<T> {
     ///
     /// `i` and `j` may be equal.
     ///
-    /// Fails if there is no element with either index.
-    ///
     /// Element at index 0 is the front of the queue.
     ///
+    /// # Panics
+    ///
+    /// Panics if either index is out of bounds.
+    ///
     /// # Examples
     ///
     /// ```