1 files changed, 1 insertions, 1 deletions
diff --git a/src/libstd/old_io/net/udp.rs b/src/libstd/old_io/net/udp.rs
index 9055a089eec..de0752b3619 100644
--- a/src/libstd/old_io/net/udp.rs
+++ b/src/libstd/old_io/net/udp.rs
@@ -47,7 +47,7 @@ use sys_common;
 ///     match socket.recv_from(&mut buf) {
 ///         Ok((amt, src)) => {
 ///             // Send a reply to the socket we received data from
-///             let buf = buf.slice_to_mut(amt);
+///             let buf = &mut buf[..amt];
 ///             buf.reverse();
 ///             socket.send_to(buf, src);
 ///         }