diff --git a/lib/readline.js b/lib/readline.js
index 75ccf23e3d..7c6f416d90 100644
--- a/lib/readline.js
+++ b/lib/readline.js
@@ -285,3 +285,4 @@ Interface.prototype._ttyWrite = function (b) {
   }
 };
 
+exports.Interface = Interface;