diff --git a/js/code-blocks-buttons.js b/js/code-blocks-buttons.js
index 0606b056ac..e4fb913d98 100644
--- a/js/code-blocks-buttons.js
+++ b/js/code-blocks-buttons.js
@@ -27,7 +27,7 @@ window.addEventListener('load', function() {
 
   addButtons(
     '.hljs',
-    button('Copy', 'Copy code to clipboard', copyIcon, 'btnClipboard')
+    button('Copy', 'Copy code to clipboard', copyIcon, 'btnClipboard'),
   );
 
   const clipboard = new ClipboardJS('.btnClipboard', {