diff --git a/src/rpc/src/trpc.c b/src/rpc/src/trpc.c
index 5403caac9db45129662291c9023d18ba2865c010..3aa50cf168de8feabfe35f8964a59bc8e6995086 100644
--- a/src/rpc/src/trpc.c
+++ b/src/rpc/src/trpc.c
@@ -1075,6 +1075,7 @@ void *taosProcessDataFromPeer(char *data, int dataLen, uint32_t ip, short port,
     // parsing error
 
     if (pHeader->msgType & 1) {
+      memset(pReply, 0, sizeof(pReply));
       msgLen = taosBuildErrorMsgToPeer(data, code, pReply);
       (*taosSendData[pServer->type])(ip, port, pReply, msgLen, chandle);
       tTrace("%s cid:%d sid:%d id:%s, %s is sent with error code:%u pConn:%p", pServer->label, chann, sid,