diff --git a/include/message.h b/include/message.h
index e919179..90e29f5 100644
--- a/include/message.h
+++ b/include/message.h
@@ -296,9 +296,9 @@ struct PACKED AddSubMsgResp {
     struct Header header;
     uint8_t retcode;
     uint8_t pub_node_id;
-    uint8_t ack_node_id;
+    uint8_t ack_sub_mode;
     uint8_t ack_msg_id;
-    uint32_t ack_err_uid_data;
+    uint16_t ack_err_uid_data;
     struct Footer footer;
 };