diff --git a/intrastat_product/models/intrastat_product_declaration.py b/intrastat_product/models/intrastat_product_declaration.py
index e4394e5..45c3873 100644
--- a/intrastat_product/models/intrastat_product_declaration.py
+++ b/intrastat_product/models/intrastat_product_declaration.py
@@ -503,7 +503,7 @@ class IntrastatProductDeclaration(models.Model):
 
                 if not inv_line.price_subtotal:
                     continue
-                
+
                 if (
                         accessory_costs and
                         inv_line.product_id and