diff --git a/demo/index.html b/demo/index.html
index 74c954d6..1d9a2189 100644
--- a/demo/index.html
+++ b/demo/index.html
@@ -12,9 +12,7 @@
         <script src="../addons/fullscreen/fullscreen.js" ></script>
     </head>
     <body>
-        <h1>
-            xterm.js: xterm, in the browser
-        </h1>
+        <h1>xterm.js: xterm, in the browser</h1>
         <div id="terminal-container"></div>
         <div>
           <h2>Options</h2>
@@ -33,6 +31,7 @@
             </div>
           </div>
         </div>
+        <p><strong>Attention:</strong> The demo should be used only for evaluation of xterm.js and not be exposed or shared to public, as this will introduce security risks for the host.</p>
         <script src="main.js" defer ></script>
     </body>
 </html>
