diff --git a/bbb-api-demo/src/main/webapp/demo11.html b/bbb-api-demo/src/main/webapp/demo11.html
index e018664b53f61853717d291dfc962789cb6350fe..146d63d20509606f81013c0f55f5f4f49069ea0d 100755
--- a/bbb-api-demo/src/main/webapp/demo11.html
+++ b/bbb-api-demo/src/main/webapp/demo11.html
@@ -47,6 +47,8 @@
     <script src="lib/bbb_blinker.js" language="javascript"></script>
     <script src="lib/bbb_deskshare.js" language="javascript"></script>
     <script type="text/javascript" src="lib/bbb_api_bridge.js"></script>
+    <script src="lib/sip-0.6.1.js" language="javascript"></script>
+    <script src="lib/bbb_webrtc_bridge_sip.js" language="javascript"></script>
 <script>
 
 	$(document).ready();