diff --git a/services/audioflinger/Threads.h b/services/audioflinger/Threads.h
index 6a9c0e7..34a3f34 100644
--- a/services/audioflinger/Threads.h
+++ b/services/audioflinger/Threads.h
@@ -1647,6 +1647,7 @@
             void    checkBtNrec_l();
 
             AudioStreamIn                       *mInput;
+            Source                              *mSource;
             SortedVector < sp<RecordTrack> >    mTracks;
             // mActiveTracks has dual roles:  it indicates the current active track(s), and
             // is used together with mStartStopCond to indicate start()/stop() progress