diff --git a/index.html b/index.html
index 93e0263..0dbf0c7 100644
--- a/index.html
+++ b/index.html
@@ -9,7 +9,7 @@
     <link href="./assets/style.css" rel="stylesheet">
     <script type="text/javascript" src="jquery.mlens-1.0.min.js"></script>
     <script type="text/javascript" src="jquery.js"></script>
-    <meta http-equiv="refresh" content="0;url=http://thuanz123.github.io/creps" />
+    <meta property="og:url" content="http://thuanz123.github.io/creps/" />
     <style>
         body {
             font-family: 'Open-Sans', sans-serif;