diff --git a/_includes/head.html b/_includes/head.html
index 802fff4..929c60b 100644
--- a/_includes/head.html
+++ b/_includes/head.html
@@ -6,6 +6,7 @@
   <link rel="stylesheet" href="{{ "/assets/main.css" | relative_url }}">
   <link rel="stylesheet" href="{{ "/assets/css/mystyle.css" | relative_url }}">
   <link rel="stylesheet" href="{{ "/assets/css/PATkatex.css" | relative_url }}">
+  <link rel="shortcut icon" type="image/x-icon" href="{{ "favicon.ico" | relative_url }}">
   {%- feed_meta -%}
   {%- if jekyll.environment == 'production' and site.google_analytics -%}
     {%- include google-analytics.html -%}
diff --git a/favicon.ico b/favicon.ico
new file mode 100644
index 0000000..00edc52
Binary files /dev/null and b/favicon.ico differ