diff --git a/src/lib.rs b/src/lib.rs
index 002d6b7..fd671b1 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -53,7 +53,6 @@
 //! # std::io::Result::Ok(()) });
 //! ```
 
-#![allow(clippy::needless_pass_by_ref_mut)]
 #![warn(missing_docs, missing_debug_implementations, rust_2018_idioms)]
 #![doc(
     html_favicon_url = "https://raw.githubusercontent.com/smol-rs/smol/master/assets/images/logo_fullsize_transparent.png"
diff --git a/src/os/windows.rs b/src/os/windows.rs
index 94dae2d..e2a56a9 100644
--- a/src/os/windows.rs
+++ b/src/os/windows.rs
@@ -25,13 +25,13 @@ use std::task::{Context, Poll};
 /// - Timer
 ///
 /// This structure can be used to wait for any of these objects to become ready.
-/// 
+///
 /// ## Implementation
-/// 
+///
 /// The current implementation waits on the handle by registering it in the application-global
 /// Win32 threadpool. However, in the futur it may be possible to migrate to an implementation
 /// on Windows 10 that uses a mechanism similar to [`MsgWaitForMultipleObjectsEx`].
-/// 
+///
 /// [`MsgWaitForMultipleObjectsEx`]: https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-msgwaitformultipleobjectsex
 ///
 /// ## Caveats