diff --git a/modules/remote_bitrate_estimator/aimd_rate_control.cc b/modules/remote_bitrate_estimator/aimd_rate_control.cc
index 8db2a6102a..a6e6436897 100644
--- a/modules/remote_bitrate_estimator/aimd_rate_control.cc
+++ b/modules/remote_bitrate_estimator/aimd_rate_control.cc
@@ -268,7 +268,8 @@ uint32_t AimdRateControl::ChangeBitrate(uint32_t new_bitrate_bps,
       if (avg_max_bitrate_kbps_ >= 0 &&
           estimated_throughput_kbps >
               avg_max_bitrate_kbps_ + 3 * std_max_bit_rate) {
-        ChangeRegion(kRcMaxUnknown);
+        rate_control_region_ = kRcMaxUnknown;
+
         avg_max_bitrate_kbps_ = -1.0;
       }
       if (rate_control_region_ == kRcNearMax) {
@@ -297,7 +298,7 @@ uint32_t AimdRateControl::ChangeBitrate(uint32_t new_bitrate_bps,
         }
         new_bitrate_bps = std::min(new_bitrate_bps, current_bitrate_bps_);
       }
-      ChangeRegion(kRcNearMax);
+      rate_control_region_ = kRcNearMax;
 
       if (bitrate_is_initialized_ &&
           estimated_throughput_bps < current_bitrate_bps_) {
@@ -417,8 +418,4 @@ void AimdRateControl::ChangeState(const RateControlInput& input,
   }
 }
 
-void AimdRateControl::ChangeRegion(RateControlRegion region) {
-  rate_control_region_ = region;
-}
-
 }  // namespace webrtc
diff --git a/modules/remote_bitrate_estimator/aimd_rate_control.h b/modules/remote_bitrate_estimator/aimd_rate_control.h
index 47581a8531..2a3f71d98a 100644
--- a/modules/remote_bitrate_estimator/aimd_rate_control.h
+++ b/modules/remote_bitrate_estimator/aimd_rate_control.h
@@ -77,7 +77,6 @@ class AimdRateControl {
   void UpdateChangePeriod(int64_t now_ms);
   void UpdateMaxThroughputEstimate(float estimated_throughput_kbps);
   void ChangeState(const RateControlInput& input, int64_t now_ms);
-  void ChangeRegion(RateControlRegion region);
 
   uint32_t min_configured_bitrate_bps_;
   uint32_t max_configured_bitrate_bps_;