diff --git a/webrtc/modules/rtp_rtcp/source/rtp_format_h264.cc b/webrtc/modules/rtp_rtcp/source/rtp_format_h264.cc
index 5d631b504d..e190ea2f6a 100644
--- a/webrtc/modules/rtp_rtcp/source/rtp_format_h264.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtp_format_h264.cc
@@ -551,9 +551,7 @@ bool RtpDepacketizerH264::ProcessStapAOrSingleNalu(
       case H264::NaluType::kEndOfSequence:
       case H264::NaluType::kEndOfStream:
       case H264::NaluType::kFiller:
-        break;
       case H264::NaluType::kSei:
-        parsed_payload->frame_type = kVideoFrameKey;
         break;
       case H264::NaluType::kStapA:
       case H264::NaluType::kFuA:
diff --git a/webrtc/modules/rtp_rtcp/source/rtp_format_h264_unittest.cc b/webrtc/modules/rtp_rtcp/source/rtp_format_h264_unittest.cc
index 22f050b8d0..1f926d9eeb 100644
--- a/webrtc/modules/rtp_rtcp/source/rtp_format_h264_unittest.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtp_format_h264_unittest.cc
@@ -893,6 +893,7 @@ TEST_F(RtpDepacketizerH264Test, TestSeiPacket) {
   RtpDepacketizer::ParsedPayload payload;
   ASSERT_TRUE(depacketizer_->Parse(&payload, kPayload, sizeof(kPayload)));
   const RTPVideoHeaderH264& h264 = payload.type.Video.codecHeader.H264;
+  EXPECT_EQ(kVideoFrameDelta, payload.frame_type);
   EXPECT_EQ(kH264SingleNalu, h264.packetization_type);
   EXPECT_EQ(kSei, h264.nalu_type);
   ASSERT_EQ(1u, h264.nalus_length);