diff --git a/lib/tty.js b/lib/tty.js
index 33e7c26f0291ed..43314991a3ba13 100644
--- a/lib/tty.js
+++ b/lib/tty.js
@@ -161,4 +161,4 @@ WriteStream.prototype.getWindowSize = function() {
   return [this.columns, this.rows];
 };
 
-module.exports = { isatty, ReadStream, WriteStream };
+module.exports = { isatty, getColorDepth, hasColors, ReadStream, WriteStream };