diff --git a/s/webrtc-from-chat/chatclient.js b/s/webrtc-from-chat/chatclient.js
index 1adcacb..015b64d 100644
--- a/s/webrtc-from-chat/chatclient.js
+++ b/s/webrtc-from-chat/chatclient.js
@@ -433,7 +433,7 @@ function closeVideoCall() {
     myPeerConnection.oniceconnectionstatechange = null;
     myPeerConnection.onsignalingstatechange = null;
     myPeerConnection.onicegatheringstatechange = null;
-    myPeerConnection.onnotificationneeded = null;
+    myPeerConnection.onnegotiationneeded = null;
 
     // Stop the videos