diff --git a/discount/init.py b/discount/init.py
index 8026138..3d3c3f2 100644
--- a/discount/init.py
+++ b/discount/init.py
@@ -767,7 +767,7 @@ async def get_discount_setting_products(request):
     WHERE p.org_id = ${org_id}$ AND p.status = '1'
     ORDER BY ${sort}$
     """
-    ns = {'discountid': discountid, 'org_id': user_orgid, 'sort': 'pc.name, p.product_name'}
+    ns = {'discountid': discountid, 'org_id': user_orgid, 'sort': ['pc.name', 'p.product_name']}
 
     async with db.sqlorContext(dbname) as sor:
         recs = await sor.sqlExe(sql, ns)