diff --git a/api/rtp_headers.cc b/api/rtp_headers.cc
index e0ad9eb26e..0573e54684 100644
--- a/api/rtp_headers.cc
+++ b/api/rtp_headers.cc
@@ -44,7 +44,6 @@ RTPHeader::RTPHeader()
       arrOfCSRCs(),
       paddingLength(0),
       headerLength(0),
-      payload_type_frequency(0),
       extension() {}
 
 RTPHeader::RTPHeader(const RTPHeader& other) = default;
diff --git a/api/rtp_headers.h b/api/rtp_headers.h
index 743fd6d1b6..5d4d4190d5 100644
--- a/api/rtp_headers.h
+++ b/api/rtp_headers.h
@@ -162,7 +162,6 @@ struct RTC_EXPORT RTPHeader {
   uint32_t arrOfCSRCs[kRtpCsrcSize];
   size_t paddingLength;
   size_t headerLength;
-  int payload_type_frequency;
   RTPHeaderExtension extension;
 };
 
diff --git a/modules/audio_coding/acm2/acm_receiver_unittest.cc b/modules/audio_coding/acm2/acm_receiver_unittest.cc
index a5095f0c0f..cda6688157 100644
--- a/modules/audio_coding/acm2/acm_receiver_unittest.cc
+++ b/modules/audio_coding/acm2/acm_receiver_unittest.cc
@@ -429,7 +429,6 @@ TEST_F(AcmReceiverTestOldApi, MAYBE_NetEqCalls) {
   rtp_header.markerBit = false;
   rtp_header.ssrc = 0x1234;
   rtp_header.numCSRCs = 0;
-  rtp_header.payload_type_frequency = kSampleRateHz;
 
   for (int num_calls = 0; num_calls < kNumNormalCalls; ++num_calls) {
     const uint8_t kPayload[kPayloadSizeBytes] = {0};
diff --git a/modules/audio_coding/acm2/audio_coding_module_unittest.cc b/modules/audio_coding/acm2/audio_coding_module_unittest.cc
index 42f4a7e4f2..210244154a 100644
--- a/modules/audio_coding/acm2/audio_coding_module_unittest.cc
+++ b/modules/audio_coding/acm2/audio_coding_module_unittest.cc
@@ -85,8 +85,6 @@ class RtpData {
     rtp_header->markerBit = false;
     rtp_header->ssrc = 0x1234;
     rtp_header->numCSRCs = 0;
-
-    rtp_header->payload_type_frequency = kSampleRateHz;
   }
 
   void Forward(RTPHeader* rtp_header) {
diff --git a/modules/rtp_rtcp/source/rtp_packet_received.cc b/modules/rtp_rtcp/source/rtp_packet_received.cc
index 6b2cc76981..9fa6197e7c 100644
--- a/modules/rtp_rtcp/source/rtp_packet_received.cc
+++ b/modules/rtp_rtcp/source/rtp_packet_received.cc
@@ -48,7 +48,6 @@ void RtpPacketReceived::GetHeader(RTPHeader* header) const {
   }
   header->paddingLength = padding_size();
   header->headerLength = headers_size();
-  header->payload_type_frequency = payload_type_frequency();
   header->extension.hasTransmissionTimeOffset =
       GetExtension<TransmissionOffset>(
           &header->extension.transmissionTimeOffset);