diff --git a/src/utilities.js b/src/utilities.js
index 90ca233f..db4956cf 100644
--- a/src/utilities.js
+++ b/src/utilities.js
@@ -27,8 +27,7 @@ export function deepCopy (target) {
 
 export function extend (destination, ...args) {
   args.forEach(source => {
-    if (source)
-    {
+    if (source) {
       Object.keys(source).forEach(property => {
         if (source[property] && isPlainObject(source[property])) {
           if (!hasOwnProperty(destination, property)) destination[property] = {}