diff --git a/Gruntfile.js b/Gruntfile.js
index 5af429598..ba1be36f1 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -1,6 +1,6 @@
 const loadGruntConfig = require('load-grunt-config');
 
-module.exports = function (grunt) {
+module.exports = (grunt) => {
 
     loadGruntConfig(grunt, {
         configPath: process.cwd() + '/config/grunt'
diff --git a/config/karma/config.js b/config/karma/config.js
index 515349c6d..7ab54a38e 100644
--- a/config/karma/config.js
+++ b/config/karma/config.js
@@ -1,4 +1,4 @@
-module.exports = function (config) {
+module.exports = (config) => {
 
     config.set({
 
diff --git a/config/karma/expectation-chrome-canary.js b/config/karma/expectation-chrome-canary.js
index 7218c87e3..40c73c5b8 100644
--- a/config/karma/expectation-chrome-canary.js
+++ b/config/karma/expectation-chrome-canary.js
@@ -1,6 +1,6 @@
 var common = require('./expectation.js');
 
-module.exports = function (config) {
+module.exports = (config) => {
 
     common(config);
 
diff --git a/config/karma/expectation-chrome.js b/config/karma/expectation-chrome.js
index 236de58d5..23ce1eb28 100644
--- a/config/karma/expectation-chrome.js
+++ b/config/karma/expectation-chrome.js
@@ -1,6 +1,6 @@
 var common = require('./expectation.js');
 
-module.exports = function (config) {
+module.exports = (config) => {
 
     common(config);
 
diff --git a/config/karma/expectation-edge.js b/config/karma/expectation-edge.js
index a822333f6..9b9e20aee 100644
--- a/config/karma/expectation-edge.js
+++ b/config/karma/expectation-edge.js
@@ -1,6 +1,6 @@
 var common = require('./expectation.js');
 
-module.exports = function (config) {
+module.exports = (config) => {
 
     common(config);
 
diff --git a/config/karma/expectation-firefox-developer.js b/config/karma/expectation-firefox-developer.js
index 2342a9fea..3205d573d 100644
--- a/config/karma/expectation-firefox-developer.js
+++ b/config/karma/expectation-firefox-developer.js
@@ -1,6 +1,6 @@
 var common = require('./expectation.js');
 
-module.exports = function (config) {
+module.exports = (config) => {
 
     common(config);
 
diff --git a/config/karma/expectation-firefox.js b/config/karma/expectation-firefox.js
index e74a00407..1ba73d33c 100644
--- a/config/karma/expectation-firefox.js
+++ b/config/karma/expectation-firefox.js
@@ -1,6 +1,6 @@
 var common = require('./expectation.js');
 
-module.exports = function (config) {
+module.exports = (config) => {
 
     common(config);
 
diff --git a/config/karma/expectation-opera.js b/config/karma/expectation-opera.js
index f48421241..c8961e747 100644
--- a/config/karma/expectation-opera.js
+++ b/config/karma/expectation-opera.js
@@ -1,6 +1,6 @@
 var common = require('./expectation.js');
 
-module.exports = function (config) {
+module.exports = (config) => {
 
     common(config);
 
diff --git a/config/karma/expectation-safari.js b/config/karma/expectation-safari.js
index b0e34d047..767e99085 100644
--- a/config/karma/expectation-safari.js
+++ b/config/karma/expectation-safari.js
@@ -1,6 +1,6 @@
 var common = require('./expectation.js');
 
-module.exports = function (config) {
+module.exports = (config) => {
 
     common(config);
 
diff --git a/config/karma/expectation.js b/config/karma/expectation.js
index 346afbff6..3280e2e4f 100644
--- a/config/karma/expectation.js
+++ b/config/karma/expectation.js
@@ -1,4 +1,4 @@
-module.exports = function (config) {
+module.exports = (config) => {
 
     config.set({