diff --git a/api/test/network_emulation_manager.cc b/api/test/network_emulation_manager.cc
index 756fe4e757..07676eaca9 100644
--- a/api/test/network_emulation_manager.cc
+++ b/api/test/network_emulation_manager.cc
@@ -71,7 +71,7 @@ NetworkEmulationManager::SimulatedNetworkNode::Builder::capacity_Mbps(
 
 NetworkEmulationManager::SimulatedNetworkNode::Builder&
 NetworkEmulationManager::SimulatedNetworkNode::Builder::loss(double loss_rate) {
-  config_.loss_percent = std::round(loss_rate * 100);
+  config_.loss_percent = loss_rate * 100;
   return *this;
 }
 
diff --git a/api/test/simulated_network.h b/api/test/simulated_network.h
index 04c5517c8d..79f5fada7b 100644
--- a/api/test/simulated_network.h
+++ b/api/test/simulated_network.h
@@ -60,8 +60,8 @@ struct BuiltInNetworkBehaviorConfig {
   int delay_standard_deviation_ms = 0;
   // Link capacity in kbps.
   int link_capacity_kbps = 0;
-  // Random packet loss.
-  int loss_percent = 0;
+  // Random packet loss, range 0 to 100.
+  double loss_percent = 0.;
   // If packets are allowed to be reordered.
   bool allow_reordering = false;
   // The average length of a burst of lost packets.