diff --git a/marti_dbw_msgs/include/marti_dbw_msgs/constants.h b/marti_dbw_msgs/include/marti_dbw_msgs/constants.h
index 38374dc..496fae9 100644
--- a/marti_dbw_msgs/include/marti_dbw_msgs/constants.h
+++ b/marti_dbw_msgs/include/marti_dbw_msgs/constants.h
@@ -28,6 +28,7 @@ const std::string TRANS_REVERSE = "reverse";
 const std::string TRANS_DRIVE_LOW = "drive_low";
 const std::string TRANS_DRIVE_HIGH = "drive_high";
 const std::string TRANS_PIVOT = "pivot";
+const std::string TRANS_REVERSE_LOW = "reverse_low";