diff --git a/ati-ti/index.php b/ati-ti/index.php
index 903e5a9..9194f4e 100644
--- a/ati-ti/index.php
+++ b/ati-ti/index.php
@@ -53,7 +53,7 @@ include "../includes/courses.php";
     <li><a href="introduction.pdf">Introduction to IT Architectures</a></li>
     <li><a href="server_architectures.pdf">Server Architectures</a></li>
     <li><a href="virtualizations.pdf">Virtualizations</a></li>
-    <li>Cloud Computing</li>
+    <li><a href="cloud_computing_1.pdf">Cloud Computing</a></li>
     <li>Web Architecture</li>
     <li>Service Oriented Architecture</li>
     <li>Web Services Architectures</li>