diff --git a/aes-kw/CHANGELOG.md b/aes-kw/CHANGELOG.md
index 01d370f..37252ae 100644
--- a/aes-kw/CHANGELOG.md
+++ b/aes-kw/CHANGELOG.md
@@ -6,11 +6,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## 0.3.1 (UNRELEASED)
 ### Added
+- Implementation of `Copy`, `Clone`, and `Hash` traits for `Error` ([[#78]])
 - Implementation of `ZeroizeOnDrop` gated on `zeroize` crate feature ([#80])
 
 ### Changed
 - Use `doc_cfg` instead of `doc_auto_cfg` ([#83])
 
+[#78]: https://github.com/RustCrypto/key-wraps/pull/78
 [#80]: https://github.com/RustCrypto/key-wraps/pull/80
 [#83]: https://github.com/RustCrypto/key-wraps/pull/83
 
diff --git a/aes-kw/src/error.rs b/aes-kw/src/error.rs
index 0a3a0b6..faa7376 100644
--- a/aes-kw/src/error.rs
+++ b/aes-kw/src/error.rs
@@ -1,7 +1,7 @@
 use core::fmt;
 
 /// Errors emitted from the wrap and unwrap operations.
-#[derive(Debug, PartialEq, Eq)]
+#[derive(Copy, Clone, Hash, Debug, PartialEq, Eq)]
 pub enum Error {
     /// Input data length invalid.
     InvalidDataSize,