diff --git a/services/audioflinger/Threads.h b/services/audioflinger/Threads.h
index b685e1b..d5a484b 100644
--- a/services/audioflinger/Threads.h
+++ b/services/audioflinger/Threads.h
@@ -738,11 +738,10 @@
     virtual     String8     getParameters(const String8& keys);
     virtual     void        ioConfigChanged(audio_io_config_event event, pid_t pid = 0);
                 status_t    getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames);
-                // FIXME rename mixBuffer() to sinkBuffer() and remove int16_t* dependency.
                 // Consider also removing and passing an explicit mMainBuffer initialization
                 // parameter to AF::PlaybackThread::Track::Track().
-                int16_t     *mixBuffer() const {
-                    return reinterpret_cast<int16_t *>(mSinkBuffer); };
+                effect_buffer_t *sinkBuffer() const {
+                    return reinterpret_cast<effect_buffer_t *>(mSinkBuffer); };
 
     virtual     void detachAuxEffect_l(int effectId);
                 status_t attachAuxEffect(const sp<AudioFlinger::PlaybackThread::Track>& track,