diff --git a/modules/congestion_controller/goog_cc/goog_cc_network_control.cc b/modules/congestion_controller/goog_cc/goog_cc_network_control.cc
index c75afc956c..fcb77faacd 100644
--- a/modules/congestion_controller/goog_cc/goog_cc_network_control.cc
+++ b/modules/congestion_controller/goog_cc/goog_cc_network_control.cc
@@ -440,8 +440,9 @@ NetworkControlUpdate GoogCcNetworkController::OnTransportPacketsFeedback(
   }
   if (packet_feedback_only_) {
     if (!feedback_max_rtts_.empty()) {
-      int64_t sum_rtt_ms = std::accumulate(feedback_max_rtts_.begin(),
-                                           feedback_max_rtts_.end(), 0);
+      int64_t sum_rtt_ms =
+          std::accumulate(feedback_max_rtts_.begin(), feedback_max_rtts_.end(),
+                          static_cast<int64_t>(0));
       int64_t mean_rtt_ms = sum_rtt_ms / feedback_max_rtts_.size();
       if (delay_based_bwe_)
         delay_based_bwe_->OnRttUpdate(TimeDelta::Millis(mean_rtt_ms));