diff --git a/control/autoware_autonomous_emergency_braking/include/autoware/autonomous_emergency_braking/node.hpp b/control/autoware_autonomous_emergency_braking/include/autoware/autonomous_emergency_braking/node.hpp
index 7d0b718f96349..097d32a5eb862 100644
--- a/control/autoware_autonomous_emergency_braking/include/autoware/autonomous_emergency_braking/node.hpp
+++ b/control/autoware_autonomous_emergency_braking/include/autoware/autonomous_emergency_braking/node.hpp
@@ -63,7 +63,6 @@ using PointCloud = pcl::PointCloud<pcl::PointXYZ>;
 using autoware::vehicle_info_utils::VehicleInfo;
 using diagnostic_updater::DiagnosticStatusWrapper;
 using diagnostic_updater::Updater;
-using tier4_autoware_utils::LineString2d;
 using tier4_autoware_utils::Point2d;
 using tier4_autoware_utils::Polygon2d;
 using visualization_msgs::msg::Marker;