diff --git a/lib/chai/utils/objDisplay.js b/lib/chai/utils/objDisplay.js
index 3010f46d..2891c2dc 100644
--- a/lib/chai/utils/objDisplay.js
+++ b/lib/chai/utils/objDisplay.js
@@ -19,6 +19,7 @@ var config = require('../config');
  * messages or should be truncated.
  *
  * @param {Mixed} javascript object to inspect
+ * @returns {string} stringified object
  * @name objDisplay
  * @namespace Utils
  * @api public