diff --git a/addons/website_sale_stock/models/product_product.py b/addons/website_sale_stock/models/product_product.py
index 0df5f6ec3d8..46ef444eaee 100644
--- a/addons/website_sale_stock/models/product_product.py
+++ b/addons/website_sale_stock/models/product_product.py
@@ -30,6 +30,9 @@ class ProductProduct(models.Model):
         combination_info = self.with_context(website_sale_stock_get_quantity=True).product_tmpl_id._get_combination_info(product_id=self.id)
         return combination_info['product_type'] == 'product' and combination_info['free_qty'] <= 0
 
+    def _website_show_quick_add(self):
+        return (self.allow_out_of_stock_order or not self._is_sold_out()) and super()._website_show_quick_add()
+
     def _send_availability_email(self):
         for product in self.search([('stock_notification_partner_ids', '!=', False)]):
             if product._is_sold_out():
diff --git a/addons/website_sale_stock/models/product_template.py b/addons/website_sale_stock/models/product_template.py
index 7346bcec16e..0b712735548 100644
--- a/addons/website_sale_stock/models/product_template.py
+++ b/addons/website_sale_stock/models/product_template.py
@@ -59,3 +59,6 @@ class ProductTemplate(models.Model):
 
     def _is_sold_out(self):
         return self.product_variant_id._is_sold_out()
+
+    def _website_show_quick_add(self):
+        return (self.allow_out_of_stock_order or not self._is_sold_out()) and super()._website_show_quick_add()