diff --git a/src/apps/mediaplayer/TransportControlGroup.cpp b/src/apps/mediaplayer/TransportControlGroup.cpp
index da55b27c5f..0282832466 100644
--- a/src/apps/mediaplayer/TransportControlGroup.cpp
+++ b/src/apps/mediaplayer/TransportControlGroup.cpp
@@ -452,6 +452,13 @@ TransportControlGroup::SetVolume(float value)
 }
 
 
+void
+TransportControlGroup::SetAudioChannelCount(int32 count)
+{
+	fPeakView->SetChannelCount(count);
+}
+
+
 void
 TransportControlGroup::SetPosition(float value, bigtime_t position,
 	bigtime_t duration)
diff --git a/src/apps/mediaplayer/TransportControlGroup.h b/src/apps/mediaplayer/TransportControlGroup.h
index 6b19f7878a..35a11d58b2 100644
--- a/src/apps/mediaplayer/TransportControlGroup.h
+++ b/src/apps/mediaplayer/TransportControlGroup.h
@@ -66,6 +66,7 @@ public:
 			void				SetMuted(bool mute);
 
 			void				SetVolume(float value);
+			void				SetAudioChannelCount(int32 count);
 			void				SetPosition(float value, bigtime_t position,
 									bigtime_t duration);
 			float				Position() const;