diff --git a/packages/Sarga/Shop/src/Repositories/ProductRepository.php b/packages/Sarga/Shop/src/Repositories/ProductRepository.php
index 3455e9d40..a45dee605 100644
--- a/packages/Sarga/Shop/src/Repositories/ProductRepository.php
+++ b/packages/Sarga/Shop/src/Repositories/ProductRepository.php
@@ -112,7 +112,7 @@ class ProductRepository extends WProductRepository
             }
 
             if(isset($params['discount']) && $params['discount']){
-                $qb->where('product_flat.special_price','>',0);
+                $qb->whereNotNull('product_flat.special_price');
             }
 
             if (! core()->getConfigData('catalog.products.homepage.out_of_stock_items')) {