diff --git a/examples/navtoolbar.html b/examples/navtoolbar.html
index 79710d8b89..e7cb203ab0 100644
--- a/examples/navtoolbar.html
+++ b/examples/navtoolbar.html
@@ -3,6 +3,11 @@
     <link rel="stylesheet" href="../theme/default/style.css" type="text/css" />
     <link rel="stylesheet" href="style.css" type="text/css" />
     <title>NavToolbar Demo</title>
+    <style type='text/css'>    
+        #map {
+            height: 512px;
+        }
+    </style>    
     <script src="../lib/OpenLayers.js"></script>
     <script type="text/javascript">
         var lon = 5;