diff --git a/modules/pacing/pacing_controller.cc b/modules/pacing/pacing_controller.cc
index 5ffbc903b3..3ac7afa7ea 100644
--- a/modules/pacing/pacing_controller.cc
+++ b/modules/pacing/pacing_controller.cc
@@ -112,8 +112,6 @@ PacingController::PacingController(Clock* clock,
       send_padding_if_silent_(
           IsEnabled(*field_trials_, "WebRTC-Pacer-PadInSilence")),
       pace_audio_(IsEnabled(*field_trials_, "WebRTC-Pacer-BlockAudio")),
-      small_first_probe_packet_(
-          !IsDisabled(*field_trials_, "WebRTC-Pacer-SmallFirstProbePacket")),
       ignore_transport_overhead_(
           IsEnabled(*field_trials_, "WebRTC-Pacer-IgnoreTransportOverhead")),
       padding_target_duration_(GetDynamicPaddingTarget(*field_trials_)),
@@ -519,7 +517,7 @@ void PacingController::ProcessPackets() {
   // The paused state is checked in the loop since it leaves the critical
   // section allowing the paused state to be changed from other code.
   while (!paused_) {
-    if (small_first_probe_packet_ && first_packet_in_probe) {
+    if (first_packet_in_probe) {
       // If first packet in probe, insert a small padding packet so we have a
       // more reliable start window for the rate estimation.
       auto padding = packet_sender_->GeneratePadding(DataSize::Bytes(1));
diff --git a/modules/pacing/pacing_controller.h b/modules/pacing/pacing_controller.h
index 6e0f9bd5b2..b0bdfb2e42 100644
--- a/modules/pacing/pacing_controller.h
+++ b/modules/pacing/pacing_controller.h
@@ -182,7 +182,6 @@ class PacingController {
   const bool drain_large_queues_;
   const bool send_padding_if_silent_;
   const bool pace_audio_;
-  const bool small_first_probe_packet_;
   const bool ignore_transport_overhead_;
   // In dynamic mode, indicates the target size when requesting padding,
   // expressed as a duration in order to adjust for varying padding rate.