diff --git a/api_line_products.go b/api_line_products.go
index f8a3b8e..ccbf351 100644
--- a/api_line_products.go
+++ b/api_line_products.go
@@ -39,7 +39,7 @@ func ApiListProductOfCat(event *linebot.Event) {
 	data = strings.TrimPrefix(data, "cat=")
 
 	var prods []Product
-	DB.Find(prods, "id in (select product_id from product_categories where category_name = ?)", data)
+	DB.Find(&prods, "id in (select product_id from product_categories where category_name = ?)", data)
 
 	columns := make([]*linebot.CarouselColumn, len(prods))
 	for i, prod := range prods {