diff --git a/lib/flash.js b/lib/flash.js
index a278bc1..24555ae 100644
--- a/lib/flash.js
+++ b/lib/flash.js
@@ -11,11 +11,11 @@ var isArray = require('util').isArray;
  * @return {Function}
  * @api public
  */
-module.exports = function flash(options) {
+module.exports = function flash (options) {
   options = options || {};
   var safe = (options.unsafe === undefined) ? true : !options.unsafe;
-  
-  return function(req, res, next) {
+
+  return function (req, res, next) {
     if (req.flash && safe) { return next(); }
     req.flash = _flash;
     next();
@@ -56,7 +56,7 @@ module.exports = function flash(options) {
  * @return {Array|Object|Number}
  * @api public
  */
-function _flash(type, msg) {
+function _flash (type, msg) {
   if (this.session === undefined) throw Error('req.flash() requires sessions');
   var msgs = this.session.flash = this.session.flash || {};
   if (type && msg) {
@@ -64,8 +64,8 @@ function _flash(type, msg) {
     if (arguments.length > 2 && format) {
       var args = Array.prototype.slice.call(arguments, 1);
       msg = format.apply(undefined, args);
-    } else if (isArray(msg)) {
-      msg.forEach(function(val){
+    } else if (Array.isArray(msg)) {
+      msg.forEach(function (val) {
         (msgs[type] = msgs[type] || []).push(val);
       });
       return msgs[type].length;