diff --git a/common/tier4_localization_rviz_plugin/src/pose_history_footprint/display.cpp b/common/tier4_localization_rviz_plugin/src/pose_history_footprint/display.cpp
index 5c392dc6fab1c..662ce97b162cd 100644
--- a/common/tier4_localization_rviz_plugin/src/pose_history_footprint/display.cpp
+++ b/common/tier4_localization_rviz_plugin/src/pose_history_footprint/display.cpp
@@ -211,7 +211,7 @@ void PoseHistoryFootprint::update_footprint()
 
   const float offset_from_baselink = property_offset_->getFloat();
 
-  for (auto & point_idx : history_) {
+  for (const auto & point_idx : history_) {
     const auto & pose = point_idx->pose;
     /*
      * Footprint