diff --git a/modules/congestion_controller/goog_cc/acknowledged_bitrate_estimator_interface.h b/modules/congestion_controller/goog_cc/acknowledged_bitrate_estimator_interface.h
index 515af1efc9..6184cdc114 100644
--- a/modules/congestion_controller/goog_cc/acknowledged_bitrate_estimator_interface.h
+++ b/modules/congestion_controller/goog_cc/acknowledged_bitrate_estimator_interface.h
@@ -33,7 +33,9 @@ struct RobustThroughputEstimatorSettings {
   explicit RobustThroughputEstimatorSettings(
       const FieldTrialsView* key_value_config);
 
-  bool enabled = false;  // Set to true to use RobustThroughputEstimator.
+  // Set `enabled` to true to use the RobustThroughputEstimator, false to use
+  // the AcknowledgedBitrateEstimator.
+  bool enabled = true;
 
   // The estimator keeps the smallest window containing at least
   // `window_packets` and at least the packets received during the last
diff --git a/modules/congestion_controller/goog_cc/robust_throughput_estimator_unittest.cc b/modules/congestion_controller/goog_cc/robust_throughput_estimator_unittest.cc
index 9a013aa6d0..f41ee7f3d6 100644
--- a/modules/congestion_controller/goog_cc/robust_throughput_estimator_unittest.cc
+++ b/modules/congestion_controller/goog_cc/robust_throughput_estimator_unittest.cc
@@ -63,6 +63,19 @@ class FeedbackGenerator {
   uint16_t sequence_number_ = 100;
 };
 
+TEST(RobustThroughputEstimatorTest, DefaultEnabled) {
+  RobustThroughputEstimatorSettings settings =
+      CreateRobustThroughputEstimatorSettings("");
+  EXPECT_TRUE(settings.enabled);
+}
+
+TEST(RobustThroughputEstimatorTest, CanDisable) {
+  RobustThroughputEstimatorSettings settings =
+      CreateRobustThroughputEstimatorSettings(
+          "WebRTC-Bwe-RobustThroughputEstimatorSettings/enabled:false/");
+  EXPECT_FALSE(settings.enabled);
+}
+
 TEST(RobustThroughputEstimatorTest, InitialEstimate) {
   FeedbackGenerator feedback_generator;
   RobustThroughputEstimator throughput_estimator(