diff --git a/api/audio/echo_canceller3_config.h b/api/audio/echo_canceller3_config.h
index e7376ed7bc..49bc895ff3 100644
--- a/api/audio/echo_canceller3_config.h
+++ b/api/audio/echo_canceller3_config.h
@@ -78,7 +78,7 @@ struct EchoCanceller3Config {
     float lf = 1.f;
     float mf = 1.f;
     float hf = 1.f;
-    float default_len = 0.88f;
+    float default_len = 0.83f;
     bool reverb_based_on_render = true;
     bool echo_can_saturate = true;
     bool bounded_erl = false;
diff --git a/modules/audio_processing/aec3/echo_canceller3.cc b/modules/audio_processing/aec3/echo_canceller3.cc
index e5219c72ab..b2f9229683 100644
--- a/modules/audio_processing/aec3/echo_canceller3.cc
+++ b/modules/audio_processing/aec3/echo_canceller3.cc
@@ -62,6 +62,10 @@ bool EnableUnityNonZeroRampupGain() {
   return field_trial::IsEnabled("WebRTC-Aec3EnableUnityNonZeroRampupGain");
 }
 
+bool EnableLongReverb() {
+  return field_trial::IsEnabled("WebRTC-Aec3ShortReverbKillSwitch");
+}
+
 // Method for adjusting config parameter dependencies..
 EchoCanceller3Config AdjustConfig(const EchoCanceller3Config& config) {
   EchoCanceller3Config adjusted_cfg = config;
@@ -147,6 +151,10 @@ EchoCanceller3Config AdjustConfig(const EchoCanceller3Config& config) {
     adjusted_cfg.echo_removal_control.gain_rampup.first_non_zero_gain = 1.f;
   }
 
+  if (EnableLongReverb()) {
+    adjusted_cfg.ep_strength.default_len = 0.88f;
+  }
+
   return adjusted_cfg;
 }