diff --git a/index.html b/index.html
index e072805c..fc12e933 100644
--- a/index.html
+++ b/index.html
@@ -2683,6 +2683,10 @@
 		<div class="page-header">
 			<h1><a href="#mobile_os" class="titleanchor"><span class="glyphicon glyphicon-link"></span></a> Mobile Operating Systems</h1>
 		</div>
+		<!-- alert message about GApps -->
+		<div class="alert alert-warning" role="alert">
+			<strong>Even though the source code of the following OS is provided, installing Google Apps may compromise your setup.</strong>
+		</div>
 		<div class="row">
 			<div class="col-sm-4">
 				<div class="panel panel-success">