diff --git a/lib/helpers.js b/lib/helpers.js
index 5914683d5..2b45bf4ab 100644
--- a/lib/helpers.js
+++ b/lib/helpers.js
@@ -378,7 +378,7 @@ var replacementText = _.template(
 
 exports.formatDeprecationWarning = function (kind, deprecated, replacement) {
   var warning = warningText({kind: kind, deprecated: deprecated});
-  if (typeof(replacement) !== 'undefined') {
+  if (typeof replacement !== 'undefined') {
     warning += replacementText({kind: kind, replacement: replacement});
   }
   return warning;