PDOException with D7.40 after enabling Extras

After enabling DS Extras in D7.40 I get a PDOException:

LOCATION	http://radsyndikat.local/admin/content
REFERRER	http://radsyndikat.local/admin/structure/ds/list
MESSAGE	PDOException: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'revision.ds_switch' in 'field list': SELECT revision.vid AS vid, base.uid AS uid, revision.title AS title, revision.log AS log, revision.status AS status, revision.comment AS comment, revision.promote AS promote, revision.sticky AS sticky, revision.vuuid AS vuuid, revision.ds_switch AS ds_switch, base.nid AS nid, base.type AS type, base.language AS language, base.created AS created, base.changed AS changed, base.tnid AS tnid, base.translate AS translate, base.uuid AS uuid, revision.timestamp AS revision_timestamp, revision.uid AS revision_uid FROM {node} base INNER JOIN {node_revision} revision ON revision.vid = base.vid WHERE (base.nid IN (:db_condition_placeholder_0, :db_condition_placeholder_1, :db_condition_placeholder_2, :db_condition_placeholder_3, :db_condition_placeholder_4, :db_condition_placeholder_5, :db_condition_placeholder_6, :db_condition_placeholder_7, :db_condition_placeholder_8, :db_condition_placeholder_9, :db_condition_placeholder_10)) ; Array ( [:db_condition_placeholder_0] => 60 [:db_condition_placeholder_1] => 88 [:db_condition_placeholder_2] => 80 [:db_condition_placeholder_3] => 96 [:db_condition_placeholder_4] => 95 [:db_condition_placeholder_5] => 59 [:db_condition_placeholder_6] => 78 [:db_condition_placeholder_7] => 81 [:db_condition_placeholder_8] => 79 [:db_condition_placeholder_9] => 58 [:db_condition_placeholder_10] => 61 ) in DrupalDefaultEntityController->load() (line 198 of /Applications/MAMP/htdocs/projects/radsyndikat/includes/entity.inc).