diff --git a/flaschengeist/models/user.py b/flaschengeist/models/user.py
index 0d9d506..fb0f050 100644
--- a/flaschengeist/models/user.py
+++ b/flaschengeist/models/user.py
@@ -1,5 +1,5 @@
 from flask import url_for
-from typing import Optional
+from typing import Optional, Type
 from datetime import date, datetime
 from sqlalchemy.orm.collections import attribute_mapped_collection
 
@@ -56,6 +56,7 @@ class User(db.Model, ModelSerializeMixin):
     mail: str = db.Column(db.String(60), nullable=False)
     birthday: Optional[date] = db.Column(db.Date)
     roles: [str] = []
+    permissions: Optional[type([str])] = None
     avatar_url: Optional[str] = ""
 
     roles_: [Role] = db.relationship("Role", secondary=association_table, cascade="save-update, merge")