diff --git a/util/src/io/mod.rs b/util/src/io/mod.rs
index 4b53a46ae..f81732ce1 100644
--- a/util/src/io/mod.rs
+++ b/util/src/io/mod.rs
@@ -13,20 +13,20 @@
 //! 	data: u32
 //! }
 //!
-//!	impl IoHandler<MyMessage> for MyHandler {
-//!		fn initialize(&self, io: &IoContext<MyMessage>) {
-//!			io.register_timer(0, 1000).unwrap();
-//!		}
-//!
-//!		fn timeout(&self, _io: &IoContext<MyMessage>, timer: TimerToken) {
-//!			println!("Timeout {}", timer);
-//!		}
-//!
-//!		fn message(&self, _io: &IoContext<MyMessage>, message: &MyMessage) {
-//!			println!("Message {}", message.data);
-//!		}
+//! impl IoHandler<MyMessage> for MyHandler {
+//! 	fn initialize(&self, io: &IoContext<MyMessage>) {
+//!		io.register_timer(0, 1000).unwrap();
 //!	}
 //!
+//!	fn timeout(&self, _io: &IoContext<MyMessage>, timer: TimerToken) {
+//!		println!("Timeout {}", timer);
+//!	}
+//!
+//!	fn message(&self, _io: &IoContext<MyMessage>, message: &MyMessage) {
+//!		println!("Message {}", message.data);
+//!	}
+//! }
+//!
 //! fn main () {
 //! 	let mut service = IoService::<MyMessage>::start().expect("Error creating network service");
 //! 	service.register_handler(Arc::new(MyHandler)).unwrap();