diff --git a/library/alloc/src/collections/vec_deque/mod.rs b/library/alloc/src/collections/vec_deque/mod.rs
index f703efd6fbe..8a9f06ff242 100644
--- a/library/alloc/src/collections/vec_deque/mod.rs
+++ b/library/alloc/src/collections/vec_deque/mod.rs
@@ -417,7 +417,7 @@ fn diff(a: usize, b: usize) -> usize {
         }
     }
 
-    /// Append all values from `src` to `dst`, wrapping around if needed.
+    /// Copies all values from `src` to `dst`, wrapping around if needed.
     /// Assumes capacity is sufficient.
     #[inline]
     unsafe fn copy_slice(&mut self, dst: usize, src: &[T]) {