diff --git a/tokio-xmpp/src/xmpp_stream.rs b/tokio-xmpp/src/xmpp_stream.rs
index 541fcaff..d9553f0d 100644
--- a/tokio-xmpp/src/xmpp_stream.rs
+++ b/tokio-xmpp/src/xmpp_stream.rs
@@ -88,19 +88,19 @@ impl<S: AsyncRead + AsyncWrite + Unpin> Sink<Packet> for XMPPStream<S> {
         Poll::Ready(Ok(()))
     }
 
-    fn start_send(self: Pin<&mut Self>, item: Packet) -> Result<(), Self::Error> {
+    fn start_send(mut self: Pin<&mut Self>, item: Packet) -> Result<(), Self::Error> {
         Pin::new(&mut self.stream.lock().unwrap().deref_mut())
             .start_send(item)
             .map_err(|e| e.into())
     }
 
-    fn poll_flush(self: Pin<&mut Self>, cx: &mut Context) -> Poll<Result<(), Self::Error>> {
+    fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Result<(), Self::Error>> {
         Pin::new(&mut self.stream.lock().unwrap().deref_mut())
             .poll_flush(cx)
             .map_err(|e| e.into())
     }
 
-    fn poll_close(self: Pin<&mut Self>, cx: &mut Context) -> Poll<Result<(), Self::Error>> {
+    fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Result<(), Self::Error>> {
         Pin::new(&mut self.stream.lock().unwrap().deref_mut())
             .poll_close(cx)
             .map_err(|e| e.into())
@@ -111,7 +111,7 @@ impl<S: AsyncRead + AsyncWrite + Unpin> Sink<Packet> for XMPPStream<S> {
 impl<S: AsyncRead + AsyncWrite + Unpin> Stream for XMPPStream<S> {
     type Item = Result<Packet, crate::Error>;
 
-    fn poll_next(self: Pin<&mut Self>, cx: &mut Context) -> Poll<Option<Self::Item>> {
+    fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Option<Self::Item>> {
         Pin::new(&mut self.stream.lock().unwrap().deref_mut())
             .poll_next(cx)
             .map(|result| result.map(|result| result.map_err(|e| e.into())))