diff --git a/nav2_costmap_2d/include/nav2_costmap_2d/footprint_subscriber.hpp b/nav2_costmap_2d/include/nav2_costmap_2d/footprint_subscriber.hpp
index 9993d9190ae..d9e9ddb3c6e 100644
--- a/nav2_costmap_2d/include/nav2_costmap_2d/footprint_subscriber.hpp
+++ b/nav2_costmap_2d/include/nav2_costmap_2d/footprint_subscriber.hpp
@@ -86,7 +86,6 @@ class FootprintSubscriber
    */
   void footprint_callback(const geometry_msgs::msg::PolygonStamped::SharedPtr msg);
 
-  std::string topic_name_;
   tf2_ros::Buffer & tf_;
   std::string robot_base_frame_;
   double transform_tolerance_;
diff --git a/nav2_costmap_2d/src/footprint_subscriber.cpp b/nav2_costmap_2d/src/footprint_subscriber.cpp
index 45e60db65e8..2c269fa3b06 100644
--- a/nav2_costmap_2d/src/footprint_subscriber.cpp
+++ b/nav2_costmap_2d/src/footprint_subscriber.cpp
@@ -31,8 +31,7 @@ FootprintSubscriber::FootprintSubscriber(
   tf2_ros::Buffer & tf,
   std::string robot_base_frame,
   double transform_tolerance)
-: topic_name_(topic_name),
-  tf_(tf),
+: tf_(tf),
   robot_base_frame_(robot_base_frame),
   transform_tolerance_(transform_tolerance)
 {
@@ -48,8 +47,7 @@ FootprintSubscriber::FootprintSubscriber(
   tf2_ros::Buffer & tf,
   std::string robot_base_frame,
   double transform_tolerance)
-: topic_name_(topic_name),
-  tf_(tf),
+: tf_(tf),
   robot_base_frame_(robot_base_frame),
   transform_tolerance_(transform_tolerance)
 {