diff --git a/tokio/src/io/async_write.rs b/tokio/src/io/async_write.rs
index dc8b852f7..0489fb7ce 100644
--- a/tokio/src/io/async_write.rs
+++ b/tokio/src/io/async_write.rs
@@ -209,3 +209,75 @@ impl AsyncWrite for Vec<u8> {
         Poll::Ready(Ok(()))
     }
 }
+
+impl AsyncWrite for io::Cursor<&mut [u8]> {
+    fn poll_write(
+        mut self: Pin<&mut Self>,
+        _: &mut Context<'_>,
+        buf: &[u8],
+    ) -> Poll<io::Result<usize>> {
+        Poll::Ready(io::Write::write(&mut *self, buf))
+    }
+
+    fn poll_flush(mut self: Pin<&mut Self>, _: &mut Context<'_>) -> Poll<io::Result<()>> {
+        Poll::Ready(io::Write::flush(&mut *self))
+    }
+
+    fn poll_shutdown(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
+        self.poll_flush(cx)
+    }
+}
+
+impl AsyncWrite for io::Cursor<&mut Vec<u8>> {
+    fn poll_write(
+        mut self: Pin<&mut Self>,
+        _: &mut Context<'_>,
+        buf: &[u8],
+    ) -> Poll<io::Result<usize>> {
+        Poll::Ready(io::Write::write(&mut *self, buf))
+    }
+
+    fn poll_flush(mut self: Pin<&mut Self>, _: &mut Context<'_>) -> Poll<io::Result<()>> {
+        Poll::Ready(io::Write::flush(&mut *self))
+    }
+
+    fn poll_shutdown(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
+        self.poll_flush(cx)
+    }
+}
+
+impl AsyncWrite for io::Cursor<Vec<u8>> {
+    fn poll_write(
+        mut self: Pin<&mut Self>,
+        _: &mut Context<'_>,
+        buf: &[u8],
+    ) -> Poll<io::Result<usize>> {
+        Poll::Ready(io::Write::write(&mut *self, buf))
+    }
+
+    fn poll_flush(mut self: Pin<&mut Self>, _: &mut Context<'_>) -> Poll<io::Result<()>> {
+        Poll::Ready(io::Write::flush(&mut *self))
+    }
+
+    fn poll_shutdown(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
+        self.poll_flush(cx)
+    }
+}
+
+impl AsyncWrite for io::Cursor<Box<[u8]>> {
+    fn poll_write(
+        mut self: Pin<&mut Self>,
+        _: &mut Context<'_>,
+        buf: &[u8],
+    ) -> Poll<io::Result<usize>> {
+        Poll::Ready(io::Write::write(&mut *self, buf))
+    }
+
+    fn poll_flush(mut self: Pin<&mut Self>, _: &mut Context<'_>) -> Poll<io::Result<()>> {
+        Poll::Ready(io::Write::flush(&mut *self))
+    }
+
+    fn poll_shutdown(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
+        self.poll_flush(cx)
+    }
+}
diff --git a/tokio/tests/io_write.rs b/tokio/tests/io_write.rs
index 733b38c9e..15c5be7c2 100644
--- a/tokio/tests/io_write.rs
+++ b/tokio/tests/io_write.rs
@@ -44,3 +44,14 @@ async fn write() {
     assert_eq!(n, 4);
     assert_eq!(wr.buf, b"hell"[..]);
 }
+
+#[tokio::test]
+async fn write_cursor() {
+    use std::io::Cursor;
+
+    let mut wr = Cursor::new(Vec::new());
+
+    let n = assert_ok!(wr.write(b"hello world").await);
+    assert_eq!(n, 11);
+    assert_eq!(wr.get_ref().as_slice(), &b"hello world"[..]);
+}