diff --git a/www/webrtc/index.html b/www/webrtc/index.html
index a0879bea..8d2eaeb3 100644
--- a/www/webrtc/index.html
+++ b/www/webrtc/index.html
@@ -3,6 +3,11 @@
   <head>
     <title>ZLM RTC demo</title>
     <script src="./ZLMRTCClient.js"></script>
+    <script src="https://unpkg.com/vconsole@latest/dist/vconsole.min.js"></script>
+    <script>
+      // VConsole will be exported to `window.VConsole` by default.
+      var vConsole = new window.VConsole();
+    </script>
     <style>
       video {
         width: 40vw;
