diff --git a/src/types.rs b/src/types.rs
index ae7bad3..c637cfd 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -3,7 +3,7 @@
 use rustc_serialize::{Decodable, Decoder};
 
 
-#[derive(Debug, Eq, PartialEq)]
+#[derive(Debug, Eq, PartialEq, Copy, Clone)]
 #[allow(dead_code)]
 pub enum OsType {
     Linux,