diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index 6cb8e9a0ded84788e6e260eada1e3dd2ef4be955..587a91ccb8f80f873082423298a5621a39f08a10 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -3529,6 +3529,7 @@ SSqlObj* createSubqueryObj(SSqlObj* pSql, int16_t tableIndex, __async_cb_func_t
   pNew->pTscObj   = pSql->pTscObj;
   pNew->signature = pNew;
   pNew->sqlstr    = strdup(pSql->sqlstr);
+  tsem_init(&pNew->rspSem, 0, 0);
 
   SSqlCmd* pnCmd  = &pNew->cmd;
   memcpy(pnCmd, pCmd, sizeof(SSqlCmd));