diff --git a/deps/oblib/src/rpc/obrpc/ob_rpc_packet_list.h b/deps/oblib/src/rpc/obrpc/ob_rpc_packet_list.h
index 75a0e799de..f80aee21fe 100644
--- a/deps/oblib/src/rpc/obrpc/ob_rpc_packet_list.h
+++ b/deps/oblib/src/rpc/obrpc/ob_rpc_packet_list.h
@@ -281,6 +281,7 @@ PCODE_DEF(OB_ADMIN_REMOVE_ARBITRATION_SERVICE, 0x2A6)
 PCODE_DEF(OB_ADMIN_REPLACE_ARBITRATION_SERVICE, 0x2A7)
 PCODE_DEF(OB_REMOVE_CLUSTER_INFO_FROM_ARB_SERVER, 0x2A8)
 #endif
+PCODE_DEF(OB_DROP_LOB, 0x2A9)
 
 PCODE_DEF(OB_CREATE_OUTLINE, 0x350)
 PCODE_DEF(OB_DROP_OUTLINE, 0x351)
diff --git a/src/share/ob_ddl_common.h b/src/share/ob_ddl_common.h
index 8a71ef905e..b23e29e2b4 100644
--- a/src/share/ob_ddl_common.h
+++ b/src/share/ob_ddl_common.h
@@ -60,6 +60,7 @@ enum ObDDLType
   DDL_CREATE_MLOG = 8,
   DDL_DROP_MLOG = 9,
   DDL_CREATE_PARTITIONED_LOCAL_INDEX = 10,
+  DDL_DROP_LOB = 11,
   ///< @note Drop schema, and refuse concurrent trans.  
   DDL_DROP_SCHEMA_AVOID_CONCURRENT_TRANS = 500,
   DDL_DROP_DATABASE = 501,