fix bug
diff --git a/plstackapi/core/models/subnet.py b/plstackapi/core/models/subnet.py
index 4ea2c40..fc16eec 100644
--- a/plstackapi/core/models/subnet.py
+++ b/plstackapi/core/models/subnet.py
@@ -14,5 +14,5 @@
     end = models.IPAddressField()
     slice = models.ForeignKey(Slice, related_name='subnet')
 
-    def __unicode__(self):  return u'%s' % (self.name)
+    def __unicode__(self):  return u'%s' % (self.slice.name)