diff --git a/src/lib.rs b/src/lib.rs
index 6a30e1c..211d688 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -77,7 +77,7 @@ pub use types::{
     address::{Address, AddressParseError},
     capability::Capability,
     lazy_load_blob::LazyLoadBlob,
-    message::{Message, _wit_message_to_message},
+    message::{BuildError, Message, _wit_message_to_message},
     on_exit::OnExit,
     package_id::PackageId,
     process_id::{ProcessId, ProcessIdParseError},
diff --git a/src/types/message.rs b/src/types/message.rs
index bc003c2..6d0b515 100644
--- a/src/types/message.rs
+++ b/src/types/message.rs
@@ -27,7 +27,7 @@ pub enum Message {
     },
 }
 
-#[derive(Debug, Error, Serialize, Deserialize)]
+#[derive(Clone, Debug, Error, Serialize, Deserialize)]
 pub enum BuildError {
     #[error("no body set for message")]
     NoBody,