diff --git a/src/raw.rs b/src/raw.rs
index 3e91696..91d8b39 100644
--- a/src/raw.rs
+++ b/src/raw.rs
@@ -25,8 +25,8 @@
 use std::io::{self, Write};
 use std::ops;
 
-use sys::Termios;
 use sys::attr::{get_terminal_attr, raw_terminal_attr, set_terminal_attr};
+use sys::Termios;
 
 /// The timeout of an escape code control sequence, in milliseconds.
 pub const CONTROL_SEQUENCE_TIMEOUT: u64 = 100;
@@ -70,6 +70,18 @@ impl<W: Write> Write for RawTerminal<W> {
     }
 }
 
+#[cfg(unix)]
+mod unix_impl {
+    use super::*;
+    use std::os::unix::io::{AsRawFd, RawFd};
+
+    impl<W: Write + AsRawFd> AsRawFd for RawTerminal<W> {
+        fn as_raw_fd(&self) -> RawFd {
+            self.output.as_raw_fd()
+        }
+    }
+}
+
 /// Types which can be converted into "raw mode".
 ///
 /// # Why is this type defined on writers and not readers?
@@ -120,7 +132,7 @@ impl<W: Write> RawTerminal<W> {
 #[cfg(test)]
 mod test {
     use super::*;
-    use std::io::{Write, stdout};
+    use std::io::{stdout, Write};
 
     #[test]
     fn test_into_raw_mode() {