diff --git a/planning/behavior_path_planner/src/scene_module/lane_change/lane_change_module.cpp b/planning/behavior_path_planner/src/scene_module/lane_change/lane_change_module.cpp
index 91fdc77369dd..f9510ecd7e8e 100644
--- a/planning/behavior_path_planner/src/scene_module/lane_change/lane_change_module.cpp
+++ b/planning/behavior_path_planner/src/scene_module/lane_change/lane_change_module.cpp
@@ -299,6 +299,7 @@ BehaviorModuleOutput LaneChangeModule::planWaitingApproval()
   BehaviorModuleOutput out;
   out.path = std::make_shared<PathWithLaneId>(prev_approved_path_);
   out.reference_path = getPreviousModuleOutput().reference_path;
+  out.turn_signal_info = getPreviousModuleOutput().turn_signal_info;
 
 #ifndef USE_OLD_ARCHITECTURE
   updateLaneChangeStatus();