diff --git a/audio/aidl/default/SoundDose.cpp b/audio/aidl/default/SoundDose.cpp
index 1c9e081..6c3a067 100644
--- a/audio/aidl/default/SoundDose.cpp
+++ b/audio/aidl/default/SoundDose.cpp
@@ -119,7 +119,8 @@
 void SoundDose::MelCallback::onNewMelValues(const std::vector<float>& mels, size_t offset,
                                             size_t length,
                                             audio_port_handle_t deviceId
-                                            __attribute__((__unused__))) const {
+                                            __attribute__((__unused__)),
+                                            bool attenuated __attribute__((__unused__))) const {
     mSoundDose.onNewMelValues(mels, offset, length, deviceId);
 }
 
diff --git a/audio/aidl/default/include/core-impl/SoundDose.h b/audio/aidl/default/include/core-impl/SoundDose.h
index 82c1077..f58e541 100644
--- a/audio/aidl/default/include/core-impl/SoundDose.h
+++ b/audio/aidl/default/include/core-impl/SoundDose.h
@@ -64,7 +64,7 @@
 
         // ------------------------------------ MelCallback ----------------------------------------
         void onNewMelValues(const std::vector<float>& mels, size_t offset, size_t length,
-                            audio_port_handle_t deviceId) const override;
+                            audio_port_handle_t deviceId, bool attenuated) const override;
         void onMomentaryExposure(float currentMel, audio_port_handle_t deviceId) const override;
 
         SoundDose& mSoundDose;  // must outlive MelCallback, not owning