diff --git a/media/libmedia/AudioTrackShared.cpp b/media/libmedia/AudioTrackShared.cpp
index 4a783b3..ff24475 100644
--- a/media/libmedia/AudioTrackShared.cpp
+++ b/media/libmedia/AudioTrackShared.cpp
@@ -307,6 +307,7 @@
 {
     audio_track_cblk_t* cblk = mCblk;
     if (!(android_atomic_or(CBLK_INVALID, &cblk->mFlags) & CBLK_INVALID)) {
+        android_atomic_or(CBLK_FUTEX_WAKE, &cblk->mFutex);
         // it seems that a FUTEX_WAKE_PRIVATE will not wake a FUTEX_WAIT, even within same process
         (void) syscall(__NR_futex, &cblk->mFutex, mClientInServer ? FUTEX_WAKE_PRIVATE : FUTEX_WAKE,
                 1);
@@ -317,6 +318,7 @@
 {
     audio_track_cblk_t* cblk = mCblk;
     if (!(android_atomic_or(CBLK_INTERRUPT, &cblk->mFlags) & CBLK_INTERRUPT)) {
+        android_atomic_or(CBLK_FUTEX_WAKE, &cblk->mFutex);
         (void) syscall(__NR_futex, &cblk->mFutex, mClientInServer ? FUTEX_WAKE_PRIVATE : FUTEX_WAKE,
                 1);
     }