diff --git a/modules/congestion_controller/goog_cc/delay_based_bwe.cc b/modules/congestion_controller/goog_cc/delay_based_bwe.cc
index 185b09d8ab..4c5bdb67a0 100644
--- a/modules/congestion_controller/goog_cc/delay_based_bwe.cc
+++ b/modules/congestion_controller/goog_cc/delay_based_bwe.cc
@@ -95,9 +95,9 @@ DelayBasedBwe::DelayBasedBwe(const WebRtcKeyValueConfig* key_value_config,
       prev_bitrate_(DataRate::Zero()),
       has_once_detected_overuse_(false),
       prev_state_(BandwidthUsage::kBwNormal),
-      use_new_inter_arrival_delta_(absl::StartsWith(
+      use_new_inter_arrival_delta_(!absl::StartsWith(
           key_value_config->Lookup("WebRTC-Bwe-NewInterArrivalDelta"),
-          "Enabled")),
+          "Disabled")),
       alr_limited_backoff_enabled_(absl::StartsWith(
           key_value_config->Lookup("WebRTC-Bwe-AlrLimitedBackoff"),
           "Enabled")) {
diff --git a/modules/congestion_controller/goog_cc/delay_based_bwe_unittest.cc b/modules/congestion_controller/goog_cc/delay_based_bwe_unittest.cc
index 06345c4d9b..0cc6068b6b 100644
--- a/modules/congestion_controller/goog_cc/delay_based_bwe_unittest.cc
+++ b/modules/congestion_controller/goog_cc/delay_based_bwe_unittest.cc
@@ -31,9 +31,10 @@ constexpr float kTargetUtilizationFraction = 0.95f;
 INSTANTIATE_TEST_SUITE_P(
     ,
     DelayBasedBweTest,
-    ::testing::Values("", "WebRTC-Bwe-NewInterArrivalDelta/Enabled/"),
+    ::testing::Values("", "WebRTC-Bwe-NewInterArrivalDelta/Disabled/"),
     [](::testing::TestParamInfo<std::string> info) {
-      return info.param == "" ? "Default" : "NewInterArrival";
+      return info.param.empty() ? "SafetypedInterArrival"
+                                : "LegacyInterArrival";
     });
 
 TEST_P(DelayBasedBweTest, ProbeDetection) {