diff --git a/modules/pacing/bitrate_prober.cc b/modules/pacing/bitrate_prober.cc
index f3795645fa..4ff7c0d583 100644
--- a/modules/pacing/bitrate_prober.cc
+++ b/modules/pacing/bitrate_prober.cc
@@ -96,8 +96,9 @@ void BitrateProber::CreateProbeCluster(int bitrate_bps, int64_t now_ms) {
   ProbeCluster cluster;
   cluster.time_created_ms = now_ms;
   cluster.pace_info.probe_cluster_min_probes = kMinProbePacketsSent;
-  cluster.pace_info.probe_cluster_min_bytes =
-      bitrate_bps * kMinProbeDurationMs / 8000;
+  cluster.pace_info.probe_cluster_min_bytes = static_cast<int32_t>(
+      static_cast<int64_t>(bitrate_bps) * kMinProbeDurationMs / 8000);
+  RTC_DCHECK_GE(cluster.pace_info.probe_cluster_min_bytes, 0);
   cluster.pace_info.send_bitrate_bps = bitrate_bps;
   cluster.pace_info.probe_cluster_id = next_cluster_id_++;
   clusters_.push(cluster);
diff --git a/modules/pacing/bitrate_prober_unittest.cc b/modules/pacing/bitrate_prober_unittest.cc
index dc596982db..95d26593cb 100644
--- a/modules/pacing/bitrate_prober_unittest.cc
+++ b/modules/pacing/bitrate_prober_unittest.cc
@@ -147,6 +147,24 @@ TEST(BitrateProberTest, ScaleBytesUsedForProbing) {
   EXPECT_FALSE(prober.IsProbing());
 }
 
+TEST(BitrateProberTest, HighBitrateProbing) {
+  BitrateProber prober;
+  constexpr int kBitrateBps = 1000000000;  // 1 Gbps.
+  constexpr int kPacketSizeBytes = 1000;
+  constexpr int kExpectedBytesSent = (kBitrateBps / 8000) * 15;
+
+  prober.CreateProbeCluster(kBitrateBps, 0);
+  prober.OnIncomingPacket(kPacketSizeBytes);
+  int bytes_sent = 0;
+  while (bytes_sent < kExpectedBytesSent) {
+    ASSERT_TRUE(prober.IsProbing());
+    prober.ProbeSent(0, kPacketSizeBytes);
+    bytes_sent += kPacketSizeBytes;
+  }
+
+  EXPECT_FALSE(prober.IsProbing());
+}
+
 TEST(BitrateProberTest, ProbeClusterTimeout) {
   BitrateProber prober;
   constexpr int kBitrateBps = 300000;  // 300 kbps