diff --git a/modules/audio_processing/agc/agc_manager_direct.cc b/modules/audio_processing/agc/agc_manager_direct.cc
index 73bf183a2b..f385438249 100644
--- a/modules/audio_processing/agc/agc_manager_direct.cc
+++ b/modules/audio_processing/agc/agc_manager_direct.cc
@@ -62,12 +62,23 @@ bool UseMaxAnalogChannelLevel() {
   return field_trial::IsEnabled("WebRTC-UseMaxAnalogAgcChannelLevel");
 }
 
-// Minimum mic level override. If specified, the override replaces
-// `kMinMicLevel` and it is applied even when clipping is detected.
+// Minimum mic level override.
+// `kMinMicLevelOverride`: if specified, the override replaces `kMinMicLevel`
+// and it is applied even when clipping is detected.
+// `EnforceMinMicLevelOverrideOnZeroLevel()`: returns true if the analog
+// controller must enforce the minimum mic level override even when the mic
+// level has manually been set to zero.
 #if defined(WEBRTC_MAC)
 constexpr absl::optional<int> kMinMicLevelOverride = 20;
+bool EnforceMinMicLevelOverrideOnZeroLevel() {
+  return field_trial::IsEnabled(
+      "WebRTC-Audio-AgcAnalogFixZeroMicLevelBugKillSwitch");
+}
 #else
 constexpr absl::optional<int> kMinMicLevelOverride = absl::nullopt;
+constexpr bool EnforceMinMicLevelOverrideOnZeroLevel() {
+  return false;
+}
 #endif
 
 int ClampLevel(int mic_level, int min_mic_level) {
@@ -455,6 +466,8 @@ AgcManagerDirect::AgcManagerDirect(
     int clipped_wait_frames,
     const ClippingPredictorConfig& clipping_config)
     : min_mic_level_override_(kMinMicLevelOverride),
+      enforce_min_mic_level_override_on_zero_level_(
+          EnforceMinMicLevelOverrideOnZeroLevel()),
       data_dumper_(new ApmDataDumper(instance_counter_.fetch_add(1) + 1)),
       use_min_channel_level_(!UseMaxAnalogChannelLevel()),
       num_capture_channels_(num_capture_channels),
@@ -706,9 +719,10 @@ void AgcManagerDirect::AggregateChannelLevels() {
       }
     }
   }
-  // TODO(crbug.com/1275566): Do not enforce minimum if the user has manually
-  // set the mic level to zero.
-  if (min_mic_level_override_.has_value()) {
+
+  if (min_mic_level_override_.has_value() &&
+      (enforce_min_mic_level_override_on_zero_level_ ||
+       stream_analog_level_ > 0)) {
     stream_analog_level_ =
         std::max(stream_analog_level_, *min_mic_level_override_);
   }
diff --git a/modules/audio_processing/agc/agc_manager_direct.h b/modules/audio_processing/agc/agc_manager_direct.h
index 86abeecb91..a437206ceb 100644
--- a/modules/audio_processing/agc/agc_manager_direct.h
+++ b/modules/audio_processing/agc/agc_manager_direct.h
@@ -128,6 +128,7 @@ class AgcManagerDirect final {
   void AggregateChannelLevels();
 
   const absl::optional<int> min_mic_level_override_;
+  const bool enforce_min_mic_level_override_on_zero_level_;
   std::unique_ptr<ApmDataDumper> data_dumper_;
   static std::atomic<int> instance_counter_;
   const bool use_min_channel_level_;
diff --git a/modules/audio_processing/agc/agc_manager_direct_unittest.cc b/modules/audio_processing/agc/agc_manager_direct_unittest.cc
index dce6aaa675..adbb2f272c 100644
--- a/modules/audio_processing/agc/agc_manager_direct_unittest.cc
+++ b/modules/audio_processing/agc/agc_manager_direct_unittest.cc
@@ -838,19 +838,6 @@ TEST_F(AgcManagerDirectTest, ClippingDoesNotPullLowVolumeBackUp) {
   EXPECT_EQ(initial_volume, manager_.stream_analog_level());
 }
 
-#if defined(WEBRTC_MAC)
-// TODO(crbug.com/1275566): Fix AGC, remove test below.
-TEST_F(AgcManagerDirectTest, BumpsToMinLevelOnZeroMicVolume) {
-  FirstProcess();
-
-  EXPECT_CALL(*agc_, GetRmsErrorDb(_))
-      .WillRepeatedly(DoAll(SetArgPointee<0>(30), Return(true)));
-  manager_.set_stream_analog_level(0);
-  CallProcess(10);
-  EXPECT_EQ(20, manager_.stream_analog_level());
-}
-#else
-// TODO(crbug.com/1275566): Fix AGC, reenable test below on Mac.
 TEST_F(AgcManagerDirectTest, TakesNoActionOnZeroMicVolume) {
   FirstProcess();
 
@@ -860,7 +847,6 @@ TEST_F(AgcManagerDirectTest, TakesNoActionOnZeroMicVolume) {
   CallProcess(10);
   EXPECT_EQ(0, manager_.stream_analog_level());
 }
-#endif
 
 TEST_F(AgcManagerDirectTest, ClippingDetectionLowersVolume) {
   SetVolumeAndProcess(255);