diff --git a/lib/tty_uv.js b/lib/tty_uv.js
index ec2c8f5f094..78971dda315 100644
--- a/lib/tty_uv.js
+++ b/lib/tty_uv.js
@@ -318,6 +318,7 @@ function WriteStream(fd) {
   });
 
   this.readable = false;
+  this.writable = true;
 }
 inherits(WriteStream, net.Socket);
 exports.WriteStream = WriteStream;