diff --git a/melange/ipam/models.py b/melange/ipam/models.py
index 2330a21d..bda890e2 100644
--- a/melange/ipam/models.py
+++ b/melange/ipam/models.py
@@ -1052,7 +1052,8 @@ class Network(ModelBase):
 
         if not any(ips):
             raise exception.NoMoreAddressesError(
-                _("ip blocks in this network are full"))
+                _("ip blocks in network %(network-id) are full")
+                % {'network-id': self.id})
 
         return filter(None, ips)