diff --git a/talk/app/webrtc/objc/RTCPeerConnectionObserver.h b/talk/app/webrtc/objc/RTCPeerConnectionObserver.h
index c7d1ef8b8c..2bb35550fe 100644
--- a/talk/app/webrtc/objc/RTCPeerConnectionObserver.h
+++ b/talk/app/webrtc/objc/RTCPeerConnectionObserver.h
@@ -57,7 +57,7 @@ class RTCPeerConnectionObserver : public PeerConnectionObserver {
   // Triggered when a remote peer open a data channel.
   virtual void OnDataChannel(DataChannelInterface* data_channel) OVERRIDE;
 
-  // Triggered when renegotation is needed, for example the ICE has restarted.
+  // Triggered when renegotiation is needed, for example the ICE has restarted.
   virtual void OnRenegotiationNeeded() OVERRIDE;
 
   // Called any time the ICEConnectionState changes
diff --git a/talk/app/webrtc/objc/public/RTCPeerConnectionDelegate.h b/talk/app/webrtc/objc/public/RTCPeerConnectionDelegate.h
index b3bb881da6..9695be8e08 100644
--- a/talk/app/webrtc/objc/public/RTCPeerConnectionDelegate.h
+++ b/talk/app/webrtc/objc/public/RTCPeerConnectionDelegate.h
@@ -52,7 +52,7 @@
 - (void)peerConnection:(RTCPeerConnection *)peerConnection
         removedStream:(RTCMediaStream *)stream;
 
-// Triggered when renegotation is needed, for example the ICE has restarted.
+// Triggered when renegotiation is needed, for example the ICE has restarted.
 - (void)peerConnectionOnRenegotiationNeeded:(RTCPeerConnection *)peerConnection;
 
 // Called any time the ICEConnectionState changes.
diff --git a/talk/app/webrtc/peerconnectioninterface.h b/talk/app/webrtc/peerconnectioninterface.h
index 4a54d3ce3d..d24c9a9ecc 100644
--- a/talk/app/webrtc/peerconnectioninterface.h
+++ b/talk/app/webrtc/peerconnectioninterface.h
@@ -276,7 +276,7 @@ class PeerConnectionObserver {
   // TODO(perkj): Make pure virtual.
   virtual void OnDataChannel(DataChannelInterface* data_channel) {}
 
-  // Triggered when renegotation is needed, for example the ICE has restarted.
+  // Triggered when renegotiation is needed, for example the ICE has restarted.
   virtual void OnRenegotiationNeeded() = 0;
 
   // Called any time the IceConnectionState changes