diff --git a/nebula_hw_interfaces/src/nebula_hesai_hw_interfaces/hesai_hw_interface.cpp b/nebula_hw_interfaces/src/nebula_hesai_hw_interfaces/hesai_hw_interface.cpp
index 8bfe0399f..e71366831 100644
--- a/nebula_hw_interfaces/src/nebula_hesai_hw_interfaces/hesai_hw_interface.cpp
+++ b/nebula_hw_interfaces/src/nebula_hesai_hw_interfaces/hesai_hw_interface.cpp
@@ -189,7 +189,7 @@ void HesaiHwInterface::ReceiveCloudPacketCallback(const std::vector<uint8_t> & b
   auto now_nanosecs =
     std::chrono::duration_cast<std::chrono::nanoseconds>(now.time_since_epoch()).count();
   pandar_packet.stamp.sec = static_cast<int>(now_secs);
-  pandar_packet.stamp.nanosec = static_cast<std::uint32_t>(now_nanosecs % 1000000000);
+  pandar_packet.stamp.nanosec = static_cast<std::uint32_t>(now_nanosecs % 1'000'000'000);
   scan_cloud_ptr_->packets.emplace_back(pandar_packet);
 
   int current_phase = 0;
diff --git a/nebula_hw_interfaces/src/nebula_velodyne_hw_interfaces/velodyne_hw_interface.cpp b/nebula_hw_interfaces/src/nebula_velodyne_hw_interfaces/velodyne_hw_interface.cpp
index 0aa2a4d3f..35aeeec82 100644
--- a/nebula_hw_interfaces/src/nebula_velodyne_hw_interfaces/velodyne_hw_interface.cpp
+++ b/nebula_hw_interfaces/src/nebula_velodyne_hw_interfaces/velodyne_hw_interface.cpp
@@ -72,7 +72,7 @@ void VelodyneHwInterface::ReceiveCloudPacketCallback(const std::vector<uint8_t>
     std::chrono::duration_cast<std::chrono::nanoseconds>(now.time_since_epoch()).count();
   velodyne_packet.data = packet_data;
   velodyne_packet.stamp.sec = static_cast<int>(now_secs);
-  velodyne_packet.stamp.nanosec = static_cast<std::uint32_t>(now_nanosecs % 1000000000);
+  velodyne_packet.stamp.nanosec = static_cast<std::uint32_t>(now_nanosecs % 1'000'000'000);
   scan_cloud_ptr_->packets.emplace_back(velodyne_packet);
   processed_packets_++;