diff --git a/src/lib.rs b/src/lib.rs
index 23460e0..297650f 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -58,6 +58,7 @@ macro_rules! im_str {
     })
 }
 
+#[derive(Clone)]
 pub struct ImStr<'a> {
     bytes: Cow<'a, [u8]>
 }