diff --git a/Cargo.toml b/Cargo.toml
index 4cc1643..5c69a6e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "chacha20-poly1305-stream"
-version = "0.1.0"
+version = "0.1.1"
 edition = "2021"
 authors = ["Cesar Eduardo Barros <cesarb@cesarb.eti.br>", "Hatter Jiang <jht5945@gmail.com>"]
 description = "A pure Rust implementation of the ChaCha20-Poly1305 AEAD from RFC 7539."
diff --git a/src/stream_decryptor.rs b/src/stream_decryptor.rs
index 985defc..dffe245 100644
--- a/src/stream_decryptor.rs
+++ b/src/stream_decryptor.rs
@@ -63,7 +63,7 @@ impl ChaCha20Poly1305StreamDecryptor {
     }
 
     /// Finalize decrypt
-    pub fn finalize(mut self) -> Result<Vec<u8>, String> {
+    pub fn finalize(&mut self) -> Result<Vec<u8>, String> {
         if self.message_buffer.len() < 16 {
             return Err("Bad tag length".to_string());
         }
@@ -84,7 +84,7 @@ impl ChaCha20Poly1305StreamDecryptor {
         let message_tag = &self.message_buffer[last_payload_len..];
 
         self.poly1305.block([self.adata_len.to_le(), self.message_len.to_le()].as_bytes());
-        let poly1305_tag = self.poly1305.tag();
+        let poly1305_tag = self.poly1305.clone().tag();
         let tag = poly1305_tag.as_bytes();
         if message_tag != tag {
             Err(format!("Tag mismatch, expected: {}, actual: {}",
diff --git a/src/stream_encryptor.rs b/src/stream_encryptor.rs
index 991ecbe..b5b5892 100644
--- a/src/stream_encryptor.rs
+++ b/src/stream_encryptor.rs
@@ -62,7 +62,7 @@ impl ChaCha20Poly1305StreamEncryptor {
     }
 
     /// Finalize encrypt
-    pub fn finalize(mut self) -> (Vec<u8>, Vec<u8>) {
+    pub fn finalize(&mut self) -> (Vec<u8>, Vec<u8>) {
         let mut last_block = vec![];
         if !self.message_buffer.is_empty() {
             let mut buf = [u32x4::default(); 4];
@@ -76,7 +76,7 @@ impl ChaCha20Poly1305StreamEncryptor {
         }
 
         self.poly1305.block([self.adata_len.to_le(), self.message_len.to_le()].as_bytes());
-        let tag = self.poly1305.tag().as_bytes().to_vec();
+        let tag = self.poly1305.clone().tag().as_bytes().to_vec();
 
         (last_block, tag)
     }