diff --git a/tienda/models.py b/tienda/models.py
index 91cb225..1cab708 100644
--- a/tienda/models.py
+++ b/tienda/models.py
@@ -111,8 +111,8 @@ class Product(models.Model):
             "price": self.price,
             "stock": self.stock,
             "category": self.category.to_dict(),
-            "primary_image": self.primary_image,
-            "secondary_images": [secondary_image.to_dict() for secondary_image in self.secondary_images],
+            "primary_image": self.primary_image.to_dict(),
+            "secondary_images": [secondary_image.to_dict() for secondary_image in self.secondary_images.all()],
             "creator": self.creator.to_dict()
         }