diff --git a/include/libs/transport/trpc.h b/include/libs/transport/trpc.h
index 3e420365676f7b0dd4bd00f75c1782cc473ca3f8..6bc28e3ea03719e16f75a0aab98fa9b9228eed1f 100644
--- a/include/libs/transport/trpc.h
+++ b/include/libs/transport/trpc.h
@@ -38,12 +38,14 @@ typedef struct SRpcConnInfo {
 
 typedef struct SRpcMsg {
   tmsg_t  msgType;
+  tmsg_t  expectMsgType;
   void *  pCont;
   int     contLen;
   int32_t code;
   void *  handle;   // rpc handle returned to app
   void *  ahandle;  // app handle set by client
   int     noResp;   // has response or not(default 0 indicate resp);
+
 } SRpcMsg;
 
 typedef struct SRpcInit {