diff --git a/assets/php/header.php b/assets/php/header.php
index 57f1b0c..73aaf9d 100644
--- a/assets/php/header.php
+++ b/assets/php/header.php
@@ -7,6 +7,8 @@
   <link rel="stylesheet" href="/assets/css/normalize.css">
   <link rel="stylesheet" href="/assets/fonts/byl-iconfont-v3.2/icons.css"/>
   <link rel="stylesheet" href="/assets/css/style.css"/>
+  <script src="/assets/js/highlight.min.js"></script>
+
 </head>
 <body>