diff --git a/services/audioflinger/IAfThread.h b/services/audioflinger/IAfThread.h
index abb8f2f..a13819c 100644
--- a/services/audioflinger/IAfThread.h
+++ b/services/audioflinger/IAfThread.h
@@ -481,7 +481,8 @@
             bool isSpatialized,
             bool isBitPerfect,
             audio_output_flags_t* afTrackFlags,
-            float volume)
+            float volume,
+            bool muted)
             REQUIRES(audio_utils::AudioFlinger_Mutex) = 0;
 
     virtual status_t addTrack_l(const sp<IAfTrack>& track) REQUIRES(mutex()) = 0;
@@ -558,8 +559,8 @@
     virtual void setTracksInternalMute(std::map<audio_port_handle_t, bool>* tracksInternalMute)
             EXCLUDES_ThreadBase_Mutex = 0;
 
-    virtual status_t setPortsVolume(const std::vector<audio_port_handle_t>& portIds, float volume)
-            EXCLUDES_ThreadBase_Mutex = 0;
+    virtual status_t setPortsVolume(const std::vector<audio_port_handle_t> &portIds, float volume,
+                                    bool muted) EXCLUDES_ThreadBase_Mutex = 0;
 };
 
 class IAfDirectOutputThread : public virtual IAfPlaybackThread {
@@ -700,8 +701,8 @@
 
     virtual AudioStreamOut* clearOutput() EXCLUDES_ThreadBase_Mutex = 0;
 
-    virtual status_t setPortsVolume(const std::vector<audio_port_handle_t>& portIds, float volume)
-            EXCLUDES_ThreadBase_Mutex = 0;
+    virtual status_t setPortsVolume(const std::vector<audio_port_handle_t>& portIds, float volume,
+                                    bool muted) EXCLUDES_ThreadBase_Mutex = 0;
 };
 
 class IAfMmapCaptureThread : public virtual IAfMmapThread {