1 files changed, 2 insertions, 2 deletions
diff --git a/packages/gitbook-plugin-highlight/src/getLanguage.js b/packages/gitbook-plugin-highlight/src/getLanguage.js
index 7a1bf8e..6a1234f 100644
--- a/packages/gitbook-plugin-highlight/src/getLanguage.js
+++ b/packages/gitbook-plugin-highlight/src/getLanguage.js
@@ -11,7 +11,7 @@ const ALIASES = require('./ALIASES');
  */
 function getLanguage(className) {
     const lang = List(className.split(' '))
-        .map(function(cl) {
+        .map((cl) => {
             // Markdown
             if (cl.search('lang-') === 0) {
                 return cl.slice('lang-'.length);
@@ -24,7 +24,7 @@ function getLanguage(className) {
 
             return null;
         })
-        .find(function(cl) {
+        .find((cl) => {
             return Boolean(cl);
         });