diff --git a/_layouts/default.html b/_layouts/default.html
index ad1d11e..c09d281 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -4,7 +4,7 @@
     <meta charset="UTF-8">
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta property="og:image" content="://repository-images.githubusercontent.com/164606802/cd83d680-894c-11e9-83f7-c353c70df1cb">
+    <meta property="og:image" content="https://repository-images.githubusercontent.com/164606802/cd83d680-894c-11e9-83f7-c353c70df1cb">
 {% seo %}
     <link rel="stylesheet" href="{{ "/assets/css/style.css?v=" | append: site.github.build_revision | relative_url }}">
   </head>