diff --git a/src/lib.rs b/src/lib.rs
index 2c4c148..34fc8fb 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -70,7 +70,6 @@ use std::sync::Arc;
 use std::task::{Context, Poll, Waker};
 use std::time::{Duration, Instant};
 
-use std::ops::Deref;
 #[cfg(all(not(async_io_no_io_safety), unix))]
 use std::os::unix::io::{AsFd, BorrowedFd, OwnedFd};
 #[cfg(unix)]
@@ -90,7 +89,7 @@ use futures_lite::stream::{self, Stream};
 use futures_lite::{future, pin, ready};
 use socket2::{Domain, Protocol, SockAddr, Socket, Type};
 
-use crate::reactor::{Reactor, Source};
+use crate::reactor::{Reactor, Source, SourceContainer};
 
 mod driver;
 mod reactor;
@@ -617,7 +616,7 @@ impl Stream for Timer {
 #[derive(Debug)]
 pub struct Async<T> {
     /// A source registered in the reactor.
-    source: ArcSource,
+    source: SourceContainer,
 
     /// The inner I/O handle.
     io: T,
@@ -679,7 +678,7 @@ impl<T: AsRawFd> Async<T> {
         }
 
         Ok(Async {
-            source: ArcSource(Reactor::get().insert_io(raw)?),
+            source: SourceContainer(Reactor::get().insert_io(raw)?),
             io,
         })
     }
@@ -755,7 +754,7 @@ impl<T: AsRawSocket> Async<T> {
         rustix::io::ioctl_fionbio(borrowed, true)?;
 
         Ok(Async {
-            source: ArcSource(Reactor::get().insert_io(sock)?),
+            source: SourceContainer(Reactor::get().insert_io(sock)?),
             io,
         })
     }
@@ -1953,21 +1952,3 @@ fn connect(addr: SockAddr, domain: Domain, protocol: Option<Protocol>) -> io::Re
     }
     Ok(socket)
 }
-
-#[derive(Debug)]
-struct ArcSource(Arc<Source>);
-
-impl Drop for ArcSource {
-    fn drop(&mut self) {
-        // Deregister and ignore errors because destructors should not panic.
-        Reactor::get().remove_io(&self.0).ok();
-    }
-}
-
-impl Deref for ArcSource {
-    type Target = Source;
-
-    fn deref(&self) -> &Self::Target {
-        self.0.deref()
-    }
-}
diff --git a/src/os/kqueue.rs b/src/os/kqueue.rs
index cb8519a..f6c6ff1 100644
--- a/src/os/kqueue.rs
+++ b/src/os/kqueue.rs
@@ -3,7 +3,7 @@
 use __private::QueueableSealed;
 
 use crate::reactor::{Reactor, Readable, Registration};
-use crate::{ArcSource, Async};
+use crate::{Async, SourceContainer};
 
 use std::convert::{TryFrom, TryInto};
 use std::future::Future;
@@ -60,7 +60,7 @@ impl<T: Queueable> Filter<T> {
     /// ```
     pub fn new(mut filter: T) -> Result<Self> {
         Ok(Self(Async {
-            source: ArcSource(Reactor::get().insert_io(filter.registration())?),
+            source: SourceContainer(Reactor::get().insert_io(filter.registration())?),
             io: filter,
         }))
     }
diff --git a/src/reactor.rs b/src/reactor.rs
index 3e39534..98df2a5 100644
--- a/src/reactor.rs
+++ b/src/reactor.rs
@@ -5,6 +5,7 @@ use std::future::Future;
 use std::io;
 use std::marker::PhantomData;
 use std::mem;
+use std::ops::Deref;
 use std::panic;
 use std::pin::Pin;
 use std::sync::atomic::{AtomicUsize, Ordering};
@@ -663,3 +664,21 @@ impl<H: Borrow<crate::Async<T>>, T> Drop for Ready<H, T> {
         }
     }
 }
+
+#[derive(Debug)]
+pub(crate) struct SourceContainer(pub(crate) Arc<Source>);
+
+impl Drop for SourceContainer {
+    fn drop(&mut self) {
+        // Deregister and ignore errors because destructors should not panic.
+        Reactor::get().remove_io(&self.0).ok();
+    }
+}
+
+impl Deref for SourceContainer {
+    type Target = Source;
+
+    fn deref(&self) -> &Self::Target {
+        self.0.deref()
+    }
+}