diff --git a/source/libs/sync/src/syncSnapshot.c b/source/libs/sync/src/syncSnapshot.c
index dbd3ad54ed..709e2549ee 100644
--- a/source/libs/sync/src/syncSnapshot.c
+++ b/source/libs/sync/src/syncSnapshot.c
@@ -862,7 +862,7 @@ static int32_t syncSnapBufferRecv(SSyncSnapshotReceiver *pReceiver, SyncSnapshot
     pRcvBuf->entries[pMsg->seq % pRcvBuf->size] = pMsg;
     ppMsg[0] = NULL;
     pRcvBuf->end = TMAX(pMsg->seq + 1, pRcvBuf->end);
-  } else {
+  } else if (pMsg->seq < pRcvBuf->start) {
     syncSnapSendRsp(pReceiver, pMsg, code);
     goto _out;
   }