1 files changed, 9 insertions, 0 deletions

diff --git a/src/mailman/interfaces/archiver.py b/src/mailman/interfaces/archiver.py
index a06bbdede..f3edc7719 100644
--- a/src/mailman/interfaces/archiver.py
+++ b/src/mailman/interfaces/archiver.py
@@ -21,14 +21,23 @@ from __future__ import absolute_import, unicode_literals
 
 __metaclass__ = type
 __all__ = [
+    'ClobberDate',
     'IArchiver',
     ]
 
 
+from flufl.enum import Enum
 from zope.interface import Interface, Attribute
 
 
 
+class ClobberDate(Enum):
+    never = 1
+    maybe = 2
+    always = 3
+
+
+
 class IArchiver(Interface):
     """An interface to the archiver."""