diff --git a/main/conference/videoconference.html b/main/conference/videoconference.html
index b92f582bce..faf1d82f88 100644
--- a/main/conference/videoconference.html
+++ b/main/conference/videoconference.html
@@ -9,7 +9,7 @@ PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loos
 html, body { margin: 0; padding: 0; height: 100%; }
 body { background-color: #eaeaea; }
 </style></head>
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+<body align="center" valign="middle"><object type="application/x-shockwave-flash" data="classroom.swf?lzproxied=false&debug=true&useRtmpt=<?php echo (api_get_setting('service_visio','visio_use_rtmpt')=='true'?'true':'false');?>" width="1005" height="720">
 <param name="movie" value="classroom.swf?lzproxied=false&debug=true">
 <param name="quality" value="high">
 <param name="scale" value="noscale">
