diff --git a/sdk/objc/Framework/Classes/VideoToolbox/RTCVideoEncoderH264.mm b/sdk/objc/Framework/Classes/VideoToolbox/RTCVideoEncoderH264.mm
index ffdbd9d3df..1ebf701b87 100644
--- a/sdk/objc/Framework/Classes/VideoToolbox/RTCVideoEncoderH264.mm
+++ b/sdk/objc/Framework/Classes/VideoToolbox/RTCVideoEncoderH264.mm
@@ -390,6 +390,7 @@ CFStringRef ExtractProfile(webrtc::SdpVideoFormat videoFormat) {
       }
       _frameScaleBuffer.shrink_to_fit();
       if (![rtcPixelBuffer cropAndScaleTo:pixelBuffer withTempBuffer:_frameScaleBuffer.data()]) {
+        CVBufferRelease(pixelBuffer);
         return WEBRTC_VIDEO_CODEC_ERROR;
       }
     }