diff --git a/admin/freeposte/admin/models.py b/admin/freeposte/admin/models.py
index c611ae47..3637908f 100644
--- a/admin/freeposte/admin/models.py
+++ b/admin/freeposte/admin/models.py
@@ -135,7 +135,7 @@ class User(Email):
 
     # Filters
     forward_enabled = db.Column(db.Boolean(), nullable=False, default=False)
-    forward_destination = db.Column(CommaSeparatedList, nullable=True, default=[])
+    forward_destination = db.Column(db.String(255), nullable=True, default=None)
     reply_enabled = db.Column(db.Boolean(), nullable=False, default=False)
     reply_subject = db.Column(db.String(255), nullable=True, default=None)
     reply_body = db.Column(db.Text(), nullable=True, default=None)