diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index a16fa94..ef218fa 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -104,6 +104,7 @@
 class AudioBuffer;
 class AudioResampler;
 class DeviceHalInterface;
+class DevicesFactoryHalCallback;
 class DevicesFactoryHalInterface;
 class EffectsFactoryHalInterface;
 class FastMixer;
@@ -836,6 +837,7 @@
                 DefaultKeyedVector<audio_module_handle_t, AudioHwDevice*>  mAudioHwDevs;
 
                 sp<DevicesFactoryHalInterface> mDevicesFactoryHal;
+                sp<DevicesFactoryHalCallback> mDevicesFactoryHalCallback;
 
     // for dump, indicates which hardware operation is currently in progress (but not stream ops)
     enum hardware_call_state {