diff --git a/benches/client.rs b/benches/client.rs
index 060c53ab54..1582a02d8e 100644
--- a/benches/client.rs
+++ b/benches/client.rs
@@ -1,4 +1,4 @@
-#![feature(core, io, test)]
+#![feature(core, old_io, test)]
 extern crate hyper;
 
 extern crate test;
diff --git a/benches/client_mock_tcp.rs b/benches/client_mock_tcp.rs
index 5caae756e5..370e73b942 100644
--- a/benches/client_mock_tcp.rs
+++ b/benches/client_mock_tcp.rs
@@ -1,4 +1,4 @@
-#![feature(collections, io, test)]
+#![feature(collections, old_io, test)]
 extern crate hyper;
 
 extern crate test;
diff --git a/benches/server.rs b/benches/server.rs
index 2ffcd75ff9..57db9935a7 100644
--- a/benches/server.rs
+++ b/benches/server.rs
@@ -1,4 +1,4 @@
-#![feature(io, test)]
+#![feature(old_io, test)]
 extern crate hyper;
 extern crate test;
 
diff --git a/examples/client.rs b/examples/client.rs
index 70edf87162..ea29965ac6 100644
--- a/examples/client.rs
+++ b/examples/client.rs
@@ -1,4 +1,4 @@
-#![feature(env, io)]
+#![feature(env, old_io)]
 extern crate hyper;
 
 use std::env;
diff --git a/examples/hello.rs b/examples/hello.rs
index 8ed34e2bdd..188f93b084 100644
--- a/examples/hello.rs
+++ b/examples/hello.rs
@@ -1,4 +1,4 @@
-#![feature(io)]
+#![feature(old_io)]
 extern crate hyper;
 
 use std::old_io::net::ip::Ipv4Addr;
diff --git a/examples/server.rs b/examples/server.rs
index 17c580bc84..769461e2cd 100644
--- a/examples/server.rs
+++ b/examples/server.rs
@@ -1,4 +1,4 @@
-#![feature(io)]
+#![feature(old_io)]
 extern crate hyper;
 #[macro_use] extern crate log;
 
diff --git a/src/lib.rs b/src/lib.rs
index 4af33e7d07..cc71b61108 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,5 @@
-#![feature(core, collections, hash, io, os, path, std_misc,
-           slicing_syntax, box_syntax, unsafe_destructor)]
+#![feature(core, collections, hash, io, old_io, os, old_path,
+           std_misc, box_syntax, unsafe_destructor)]
 #![deny(missing_docs)]
 #![cfg_attr(test, deny(warnings))]
 #![cfg_attr(test, feature(alloc, test))]