diff --git a/themis/datatypes/commission.py b/themis/datatypes/commission.py
index e8184a1..58abbcf 100644
--- a/themis/datatypes/commission.py
+++ b/themis/datatypes/commission.py
@@ -7,4 +7,5 @@ from themis.datatypes.interfaces import MessageFactory as _
 
 class ICommission(form.Schema):
     title = schema.TextLine(title=_(u'Name'))
+    active = schema.Bool(title=_(u'Active'), default=True)