diff --git a/src/client/src/tscSub.c b/src/client/src/tscSub.c
index e4f67ba0def6cc16b9a1946e52e1ba11459e9f8d..421a6ce93a45d10acd8354f9ca41994e7bba465a 100644
--- a/src/client/src/tscSub.c
+++ b/src/client/src/tscSub.c
@@ -509,6 +509,7 @@ TAOS_RES *taos_consume(TAOS_SUB *tsub) {
     }
     pSub->pSql = pSql;
     pSql->pSubscription = pSub;
+    pSub->lastSyncTime = 0;
 
     // no table list now, force to update it
     tscDebug("begin table synchronization");