diff --git a/docs/_templates/sidebarintro.html b/docs/_templates/sidebarintro.html
index e6ff3cd0..c78a595b 100644
--- a/docs/_templates/sidebarintro.html
+++ b/docs/_templates/sidebarintro.html
@@ -2,6 +2,9 @@ <h3><a href="/">Bootstrap-Flask</a></h3>
 <p>
     Bootstrap helper for Flask.
 </p>
+
+<iframe src="https://ghbtns.com/github-btn.html?user=greyli&repo=bootstrap-flask&type=star&count=true" frameborder="0" scrolling="0" width="150" height="30" title="GitHub"></iframe>
+
 <h3>Links</h3>
 <ul>
   <li><a href="https://github.com/greyli/bootstrap-flask">GitHub Repository</a></li>