diff --git a/uncloud_django_based/uncloud/uncloud_net/models.py b/uncloud_django_based/uncloud/uncloud_net/models.py
index 26a6eb8..8dfff05 100644
--- a/uncloud_django_based/uncloud/uncloud_net/models.py
+++ b/uncloud_django_based/uncloud/uncloud_net/models.py
@@ -173,11 +173,11 @@ class VPNNetwork(Product):
 
     wireguard_public_key = models.CharField(max_length=48)
 
+    def save(self, *args, **kwargs):
+        super().save(*args, **kwargs)
+
     def delete(self, *args, **kwargs):
         self.network.status = 'free'
         self.network.save()
         super().save(*args, **kwargs)
         print("deleted {}".format(self))
-
-# managing deletion
-# - record free network (?)