diff --git a/common/autoware_ad_api_msgs/common/msg/ResponseStatus.msg b/common/autoware_ad_api_msgs/common/msg/ResponseStatus.msg
index 4fe0e5d4208e3..c231f06e9b093 100644
--- a/common/autoware_ad_api_msgs/common/msg/ResponseStatus.msg
+++ b/common/autoware_ad_api_msgs/common/msg/ResponseStatus.msg
@@ -8,3 +8,4 @@ uint16 TRANSFORM_ERROR = 50003
 bool   success
 uint16 code
 string message
+string message2
\ No newline at end of file