diff --git a/async_core/src/eventfd.rs b/async_core/src/eventfd.rs
index 4030fb83d5..b930f075ff 100644
--- a/async_core/src/eventfd.rs
+++ b/async_core/src/eventfd.rs
@@ -5,7 +5,7 @@
 use futures::Stream;
 use std::convert::TryFrom;
 use std::fmt::{self, Display};
-use std::os::unix::io::{AsRawFd};
+use std::os::unix::io::AsRawFd;
 use std::pin::Pin;
 use std::task::{Context, Poll};