diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 6afbd4f..0ed63a4 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -88,6 +88,7 @@
 #include "SpdifStreamOut.h"
 #include "AudioHwDevice.h"
 #include "NBAIO_Tee.h"
+#include "TrackMetrics.h"
 
 #include <powermanager/IPowerManager.h>