diff --git a/sdk/objc/Framework/Classes/Common/RTCFieldTrials.mm b/sdk/objc/Framework/Classes/Common/RTCFieldTrials.mm
index 2e4b794c60..8a556100c2 100644
--- a/sdk/objc/Framework/Classes/Common/RTCFieldTrials.mm
+++ b/sdk/objc/Framework/Classes/Common/RTCFieldTrials.mm
@@ -21,6 +21,7 @@
 
 NSString * const kRTCFieldTrialAudioSendSideBweKey = @"WebRTC-Audio-SendSideBwe";
 NSString * const kRTCFieldTrialAudioSendSideBweForVideoKey = @"WebRTC-Audio-SendSideBwe-For-Video";
+NSString * const kRTCFieldTrialAudioForceNoTWCCKey = @"WebRTC-Audio-ForceNoTWCC";
 NSString * const kRTCFieldTrialSendSideBweWithOverheadKey = @"WebRTC-SendSideBwe-WithOverhead";
 NSString * const kRTCFieldTrialFlexFec03AdvertisedKey = @"WebRTC-FlexFEC-03-Advertised";
 NSString * const kRTCFieldTrialFlexFec03Key = @"WebRTC-FlexFEC-03";
diff --git a/sdk/objc/Framework/Headers/WebRTC/RTCFieldTrials.h b/sdk/objc/Framework/Headers/WebRTC/RTCFieldTrials.h
index e4b464d696..b236fd1d30 100644
--- a/sdk/objc/Framework/Headers/WebRTC/RTCFieldTrials.h
+++ b/sdk/objc/Framework/Headers/WebRTC/RTCFieldTrials.h
@@ -15,6 +15,7 @@
 /** The only valid value for the following if set is kRTCFieldTrialEnabledValue. */
 RTC_EXTERN NSString * const kRTCFieldTrialAudioSendSideBweKey;
 RTC_EXTERN NSString * const kRTCFieldTrialAudioSendSideBweForVideoKey;
+RTC_EXTERN NSString * const kRTCFieldTrialAudioForceNoTWCCKey;
 RTC_EXTERN NSString * const kRTCFieldTrialSendSideBweWithOverheadKey;
 RTC_EXTERN NSString * const kRTCFieldTrialFlexFec03AdvertisedKey;
 RTC_EXTERN NSString * const kRTCFieldTrialFlexFec03Key;