diff --git a/source/libs/transport/src/transCli.c b/source/libs/transport/src/transCli.c
index 798a5bf54f..e2b69dd145 100644
--- a/source/libs/transport/src/transCli.c
+++ b/source/libs/transport/src/transCli.c
@@ -961,6 +961,10 @@ static void cliSendCb(uv_write_t* req, int status) {
       tTrace("%s conn %p send cost:%dus ", CONN_GET_INST_LABEL(pConn), pConn, (int)cost);
     }
   }
+  if (pMsg->msg.contLen == 0 && pMsg->msg.pCont != 0) {
+    rpcFreeCont(pMsg->msg.pCont);
+    pMsg->msg.pCont = 0;
+  }
 
   if (status == 0) {
     tDebug("%s conn %p data already was written out", CONN_GET_INST_LABEL(pConn), pConn);