diff --git a/ponyconf/management/commands/addsite.py b/ponyconf/management/commands/addsite.py
index 17c0a24..070443c 100644
--- a/ponyconf/management/commands/addsite.py
+++ b/ponyconf/management/commands/addsite.py
@@ -9,5 +9,8 @@ class Command(BaseCommand):
         parser.add_argument('domain', type=str)
 
     def handle(self, *args, **options):
-        site = Site.objects.create(domain=options['domain'], name=options['domain'])
-        self.stdout.write(self.style.SUCCESS('Created site {}'.format(site)))
+        site, created = Site.objects.get_or_create(domain=options['domain'], name=options['domain'])
+        if created:
+            self.stdout.write(self.style.SUCCESS('Created site {}'.format(site)))
+        else:
+            self.stdout.write(self.style.NOTICE('Site {} already exists'.format(site)))