diff --git a/axum-core/src/response/append_headers.rs b/axum-core/src/response/append_headers.rs
index e4ac4812f9..aa8f2dbdfb 100644
--- a/axum-core/src/response/append_headers.rs
+++ b/axum-core/src/response/append_headers.rs
@@ -29,7 +29,7 @@ use std::fmt;
 ///     )
 /// }
 /// ```
-#[derive(Debug)]
+#[derive(Debug, Clone, Copy)]
 #[must_use]
 pub struct AppendHeaders<I>(pub I);