--- a/media/webrtc/signaling/src/peerconnection/PeerConnectionImpl.cpp
+++ b/media/webrtc/signaling/src/peerconnection/PeerConnectionImpl.cpp
@@ -3825,18 +3825,24 @@ PeerConnectionImpl::DTMFState::Notify(ns
   }
 
   RefPtr<PeerConnectionObserver> pco = do_QueryObjectReferent(mPCObserver);
   if (!pco) {
     NS_WARNING("Failed to dispatch the RTCDTMFToneChange event!");
     return NS_OK; // Return is ignored anyhow
   }
 
+  RefPtr<dom::MediaStreamTrack> sendTrack = mTransceiver->GetSendTrack();
+  if (!sendTrack) {
+    NS_WARNING("Failed to dispatch the RTCDTMFToneChange event!");
+    return NS_OK; // Return is ignored anyhow
+  }
+
   JSErrorResult jrv;
-  pco->OnDTMFToneChange(*mTransceiver->GetSendTrack(), eventTone, jrv);
+  pco->OnDTMFToneChange(*sendTrack, eventTone, jrv);
 
   if (jrv.Failed()) {
     NS_WARNING("Failed to dispatch the RTCDTMFToneChange event!");
   }
 
   return NS_OK;
 }