    // called, they will invoke the relevant instance method by casting
    // in_ref_con to VoiceProcessingAudioUnit*.
 diff --git a/sdk/objc/native/src/audio/voice_processing_audio_unit.mm b/sdk/objc/native/src/audio/voice_processing_audio_unit.mm
-index 15a09b31e2..9419abd5ff 100644
+index 15a09b31e2..531b16a751 100644
 --- a/sdk/objc/native/src/audio/voice_processing_audio_unit.mm
 +++ b/sdk/objc/native/src/audio/voice_processing_audio_unit.mm
 @@ -15,6 +15,7 @@

 
 @interface RTCAudioSession (Configuration)
diff --git a/sdk/objc/components/audio/RTCAudioSession.mm b/sdk/objc/components/audio/RTCAudioSession.mm
index 09ffa16fcc..744c6f63bb 100644
--- a/sdk/objc/components/audio/RTCAudioSession.mm
+++ b/sdk/objc/components/audio/RTCAudioSession.mm
@@ -23,6 +23,7 @@

 - (BOOL)setCategory:(NSString *)category
         withOptions:(AVAudioSessionCategoryOptions)options
               error:(NSError **)outError {
@@ -992,4 +1006,126 @@ - (void)notifyFailedToSetActive:(BOOL)active error:(NSError *)error {
   }
 }
 
