diff --git a/media/engine/encoder_simulcast_proxy.cc b/media/engine/encoder_simulcast_proxy.cc
index e87e1031b5..8c2f82514b 100644
--- a/media/engine/encoder_simulcast_proxy.cc
+++ b/media/engine/encoder_simulcast_proxy.cc
@@ -61,6 +61,19 @@ int EncoderSimulcastProxy::SetRateAllocation(
   return encoder_->SetRateAllocation(bitrate, new_framerate);
 }
 
+void EncoderSimulcastProxy::OnPacketLossRateUpdate(float packet_loss_rate) {
+  return encoder_->OnPacketLossRateUpdate(packet_loss_rate);
+}
+
+void EncoderSimulcastProxy::OnRttUpdate(int64_t rtt_ms) {
+  return encoder_->OnRttUpdate(rtt_ms);
+}
+
+void EncoderSimulcastProxy::OnLossNotification(
+    const LossNotification& loss_notification) {
+  encoder_->OnLossNotification(loss_notification);
+}
+
 VideoEncoder::EncoderInfo EncoderSimulcastProxy::GetEncoderInfo() const {
   return encoder_->GetEncoderInfo();
 }
diff --git a/media/engine/encoder_simulcast_proxy.h b/media/engine/encoder_simulcast_proxy.h
index e9f9f34173..1251e58f29 100644
--- a/media/engine/encoder_simulcast_proxy.h
+++ b/media/engine/encoder_simulcast_proxy.h
@@ -50,6 +50,9 @@ class RTC_EXPORT EncoderSimulcastProxy : public VideoEncoder {
   int RegisterEncodeCompleteCallback(EncodedImageCallback* callback) override;
   int SetRateAllocation(const VideoBitrateAllocation& bitrate,
                         uint32_t new_framerate) override;
+  void OnPacketLossRateUpdate(float packet_loss_rate) override;
+  void OnRttUpdate(int64_t rtt_ms) override;
+  void OnLossNotification(const LossNotification& loss_notification) override;
   EncoderInfo GetEncoderInfo() const override;
 
  private: