diff --git a/src/xxh32.rs b/src/xxh32.rs
index 60cacdc..693259b 100644
--- a/src/xxh32.rs
+++ b/src/xxh32.rs
@@ -91,6 +91,7 @@ pub fn xxh32(mut input: &[u8], seed: u32) -> u32 {
 }
 
 ///XXH32 Streaming algorithm
+#[derive(Clone)]
 pub struct Xxh32 {
     total_len: u32,
     is_large_len: bool,
diff --git a/src/xxh64.rs b/src/xxh64.rs
index d48f5a7..94c7633 100644
--- a/src/xxh64.rs
+++ b/src/xxh64.rs
@@ -123,6 +123,7 @@ pub fn xxh64(mut input: &[u8], seed: u64) -> u64 {
 }
 
 ///XXH64 Streaming algorithm
+#[derive(Clone)]
 pub struct Xxh64 {
     total_len: u64,
     v1: u64,