diff --git a/src/content/peerconnection/constraints/js/main.js b/src/content/peerconnection/constraints/js/main.js
index 9f55c77f3..74fa61f04 100644
--- a/src/content/peerconnection/constraints/js/main.js
+++ b/src/content/peerconnection/constraints/js/main.js
@@ -151,8 +151,8 @@ function createPeerConnection() {
   remotePeerConnection = new RTCPeerConnection(null);
   localStream.getTracks().forEach(track => localPeerConnection.addTrack(track, localStream));
   console.log('localPeerConnection creating offer');
-  localPeerConnection.onnegotiationeeded = () => console.log('Negotiation needed - localPeerConnection');
-  remotePeerConnection.onnegotiationeeded = () => console.log('Negotiation needed - remotePeerConnection');
+  localPeerConnection.onnegotiationneeded = () => console.log('Negotiation needed - localPeerConnection');
+  remotePeerConnection.onnegotiationneeded = () => console.log('Negotiation needed - remotePeerConnection');
   localPeerConnection.onicecandidate = e => {
     console.log('Candidate localPeerConnection');
     remotePeerConnection
diff --git a/src/content/peerconnection/old-new-stats/js/main.js b/src/content/peerconnection/old-new-stats/js/main.js
index 4db1c08c8..3d525c422 100644
--- a/src/content/peerconnection/old-new-stats/js/main.js
+++ b/src/content/peerconnection/old-new-stats/js/main.js
@@ -136,10 +136,10 @@ document.addEventListener('DOMContentLoaded', async () => {
     remotePeerConnection = new RTCPeerConnection(null);
     localStream.getTracks().forEach(track => localPeerConnection.addTrack(track, localStream));
     console.log('localPeerConnection creating offer');
-    localPeerConnection.onnegotiationeeded = () => {
+    localPeerConnection.onnegotiationneeded = () => {
       console.log('Negotiation needed - localPeerConnection');
     };
-    remotePeerConnection.onnegotiationeeded = () => {
+    remotePeerConnection.onnegotiationneeded = () => {
       console.log('Negotiation needed - remotePeerConnection');
     };
 
@@ -270,4 +270,4 @@ document.addEventListener('DOMContentLoaded', async () => {
 
   // Start it all up
   displayGetUserMediaConstraints();
-});
\ No newline at end of file
+});