diff --git a/uncloud_net/serializers.py b/uncloud_net/serializers.py
index 8287047..fc87c71 100644
--- a/uncloud_net/serializers.py
+++ b/uncloud_net/serializers.py
@@ -32,6 +32,7 @@ class WireGuardVPNSerializer(serializers.ModelSerializer):
         if not value in sizes:
             raise serializers.ValidationError(msg)
 
+        return value
 
     def validate_wireguard_public_key(self, value):
         msg = _("Supplied key is not a valid wireguard public key")
@@ -54,9 +55,4 @@ class WireGuardVPNSerializer(serializers.ModelSerializer):
 
 
 class WireGuardVPNSizesSerializer(serializers.Serializer):
-
     size = serializers.IntegerField(min_value=0, max_value=128)
-
-    # sizes = serializers.ListField(
-    #     child=serializers.IntegerField(min_value=0, max_value=128)
-    # )
diff --git a/uncloud_net/services.py b/uncloud_net/services.py
index a23d48f..4f80c44 100644
--- a/uncloud_net/services.py
+++ b/uncloud_net/services.py
@@ -7,8 +7,6 @@ from .tasks     import *
 @transaction.atomic
 def create_wireguard_vpn(owner, public_key, network_mask):
 
-
-
     pool = get_suitable_pools(network_mask)[0]
     count = pool.wireguardvpn_set.count()
 
diff --git a/uncloud_net/tasks.py b/uncloud_net/tasks.py
index 28b90c7..78ae80c 100644
--- a/uncloud_net/tasks.py
+++ b/uncloud_net/tasks.py
@@ -47,7 +47,6 @@ def cdist_configure_wireguard_server(config, server):
     with open(fname, "w") as fd:
         fd.write(config)
 
-
     log.debug("git committing wireguard changes")
     subprocess.run(f"cd {dirname} && git pull && git add {server} && git commit -m 'Updating config for {server}' && git push",
                    shell=True, check=True)