diff --git a/media/libaudioclient/TrackPlayerBase.cpp b/media/libaudioclient/TrackPlayerBase.cpp
index 536e9fb..188f321 100644
--- a/media/libaudioclient/TrackPlayerBase.cpp
+++ b/media/libaudioclient/TrackPlayerBase.cpp
@@ -40,6 +40,7 @@
     if (mAudioTrack != 0) {
         mSelfAudioDeviceCallback = new SelfAudioDeviceCallback(*this);
         mAudioTrack->addAudioDeviceCallback(mSelfAudioDeviceCallback);
+        mAudioTrack->setPlayerIId(mPIId); // set in PlayerBase::init().
     }
 }