diff --git a/services/audioflinger/PlaybackTracks.h b/services/audioflinger/PlaybackTracks.h
index 5600411c..d34833f 100644
--- a/services/audioflinger/PlaybackTracks.h
+++ b/services/audioflinger/PlaybackTracks.h
@@ -59,6 +59,7 @@
             void        setMainBuffer(int16_t *buffer) { mMainBuffer = buffer; }
             int16_t     *mainBuffer() const { return mMainBuffer; }
             int         auxEffectId() const { return mAuxEffectId; }
+    virtual status_t    getTimestamp(AudioTimestamp& timestamp);
 
 // implement FastMixerState::VolumeProvider interface
     virtual uint32_t    getVolumeLR();