diff --git a/lib/mocha.js b/lib/mocha.js
index 124c4152f6..8732470134 100644
--- a/lib/mocha.js
+++ b/lib/mocha.js
@@ -881,7 +881,7 @@ Mocha.prototype.failZero = function (failZero) {
  * @return {Mocha} this
  * @chainable
  */
-Mocha.prototype.passOnFailingTestSuite = function (passOnFailingTestSuite) {
+Mocha.prototype.passOnFailingTestSuite = function(passOnFailingTestSuite) {
   this.options.passOnFailingTestSuite = passOnFailingTestSuite === true;
   return this;
 };