diff --git a/_includes/header.html b/_includes/header.html
index 2f4e89d..486f9c4 100644
--- a/_includes/header.html
+++ b/_includes/header.html
@@ -1,5 +1,8 @@
 <header class="site-header">
 
+ <!-- https://keepandroidopen.org/banner/ -->
+ <script src="https://keepandroidopen.org/banner.js?size=minimal&animation=off"></script>
+
   <div class="wrapper">
     {%- assign default_paths = site.pages | map: "path" -%}
     {%- assign page_paths = site.header_pages | default: default_paths -%}
diff --git a/_layouts/mini.html b/_layouts/mini.html
index f124773..c9ee37d 100644
--- a/_layouts/mini.html
+++ b/_layouts/mini.html
@@ -4,6 +4,10 @@
   <body>
     <div class="page-content">
       <div class="wrapper">
+
+ <!-- https://keepandroidopen.org/banner/ -->
+ <script src="https://keepandroidopen.org/banner.js?size=minimal&animation=off"></script>
+
         <p class="centered"><small><a lang="en" rel="prefetch" href="/n/">Return to note index?</a></small></p>
         {{ content }}</div>
         <p class="centered"><small><a lang="en" rel="prefetch" href="/n/">Return to note index?</a></small></p>
