diff --git a/acme_common/src/error.rs b/acme_common/src/error.rs
index 3d8c355..ce12a9c 100644
--- a/acme_common/src/error.rs
+++ b/acme_common/src/error.rs
@@ -1,6 +1,6 @@
 use std::fmt;
 
-#[derive(Debug)]
+#[derive(Clone, Debug)]
 pub struct Error {
     pub message: String,
 }