diff --git a/sdk/objc/api/video_codec/RTCWrappedNativeVideoEncoder.mm b/sdk/objc/api/video_codec/RTCWrappedNativeVideoEncoder.mm
index ebfba2c132..9afd54f55f 100644
--- a/sdk/objc/api/video_codec/RTCWrappedNativeVideoEncoder.mm
+++ b/sdk/objc/api/video_codec/RTCWrappedNativeVideoEncoder.mm
@@ -63,7 +63,7 @@
   return nil;
 }
 
-- (RTCVideoEncoderQpThresholds *)scalingSettings {
+- (nullable RTCVideoEncoderQpThresholds *)scalingSettings {
   RTC_NOTREACHED();
   return nil;
 }
diff --git a/sdk/objc/base/RTCVideoEncoder.h b/sdk/objc/base/RTCVideoEncoder.h
index 41e78badea..b566615bd9 100644
--- a/sdk/objc/base/RTCVideoEncoder.h
+++ b/sdk/objc/base/RTCVideoEncoder.h
@@ -42,7 +42,7 @@ RTC_EXPORT
 /** Returns QP scaling settings for encoder. The quality scaler adjusts the resolution in order to
  *  keep the QP from the encoded images within the given range. Returning nil from this function
  *  disables quality scaling. */
-- (RTCVideoEncoderQpThresholds *)scalingSettings;
+- (nullable RTCVideoEncoderQpThresholds *)scalingSettings;
 
 @end
 
diff --git a/sdk/objc/components/video_codec/RTCVideoEncoderH264.mm b/sdk/objc/components/video_codec/RTCVideoEncoderH264.mm
index 6cd56debc8..16ad1ff47a 100644
--- a/sdk/objc/components/video_codec/RTCVideoEncoderH264.mm
+++ b/sdk/objc/components/video_codec/RTCVideoEncoderH264.mm
@@ -753,7 +753,7 @@ CFStringRef ExtractProfile(webrtc::SdpVideoFormat videoFormat) {
   _bitrateAdjuster->Update(frame.buffer.length);
 }
 
-- (RTCVideoEncoderQpThresholds *)scalingSettings {
+- (nullable RTCVideoEncoderQpThresholds *)scalingSettings {
   return [[RTCVideoEncoderQpThresholds alloc] initWithThresholdsLow:kLowH264QpThreshold
                                                                high:kHighH264QpThreshold];
 }