diff --git a/public/index.html b/public/index.html
index de9ebd48..f64ce524 100644
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@@ -13,7 +13,7 @@
 </head>
 
 <body>
-<h1> Ten rCore Tutorial OSes </h1>
+<h1> The API docs for Ten rCore Tutorial OSes </h1>
 <br>
 <h1><a href="./ch1/os/index.html">1. LibOS API doc</a></h1>
 <h1><a href="./ch2/os/index.html">2. BatchOS API doc</a></h1>
