diff --git a/source/libs/transport/src/transSrv.c b/source/libs/transport/src/transSrv.c
index 040c12b8805f877d89c9c32d530074f951e63371..ec42ab6402e45d4c0381a249b34cfd4a374be830 100644
--- a/source/libs/transport/src/transSrv.c
+++ b/source/libs/transport/src/transSrv.c
@@ -214,7 +214,9 @@ static void uvHandleReq(SSrvConn* pConn) {
     // pHead = rpcDecompresSTransMsg(pHead);
   } else {
     pHead->msgLen = htonl(pHead->msgLen);
-    // impl later
+    if (pHead->secured == 1) {
+      pHead->msgLen -= sizeof(STransUserMsg);
+    }
     //
   }