diff --git a/modules/audio_processing/gain_control_for_experimental_agc.cc b/modules/audio_processing/gain_control_for_experimental_agc.cc
index 6f1fc6ad1e..4ab856c2c3 100644
--- a/modules/audio_processing/gain_control_for_experimental_agc.cc
+++ b/modules/audio_processing/gain_control_for_experimental_agc.cc
@@ -12,6 +12,7 @@
 
 #include "modules/audio_processing/include/audio_processing.h"
 #include "modules/audio_processing/logging/apm_data_dumper.h"
+#include "rtc_base/atomicops.h"
 #include "rtc_base/checks.h"
 #include "rtc_base/criticalsection.h"
 
@@ -22,12 +23,11 @@ int GainControlForExperimentalAgc::instance_counter_ = 0;
 GainControlForExperimentalAgc::GainControlForExperimentalAgc(
     GainControl* gain_control,
     rtc::CriticalSection* crit_capture)
-    : data_dumper_(new ApmDataDumper(instance_counter_)),
+    : data_dumper_(
+          new ApmDataDumper(rtc::AtomicOps::Increment(&instance_counter_))),
       real_gain_control_(gain_control),
       volume_(0),
-      crit_capture_(crit_capture) {
-  instance_counter_++;
-}
+      crit_capture_(crit_capture) {}
 
 GainControlForExperimentalAgc::~GainControlForExperimentalAgc() = default;