diff --git a/services/audioflinger/MmapTracks.h b/services/audioflinger/MmapTracks.h
index 366a164..a210a1b 100644
--- a/services/audioflinger/MmapTracks.h
+++ b/services/audioflinger/MmapTracks.h
@@ -23,6 +23,7 @@
 class MmapTrack : public TrackBase {
 public:
                 MmapTrack(ThreadBase *thread,
+                            const audio_attributes_t& attr,
                             uint32_t sampleRate,
                             audio_format_t format,
                             audio_channel_mask_t channelMask,