diff --git a/src/calibre/db/backend.py b/src/calibre/db/backend.py index f99a04adce..36f3df81c4 100644 --- a/src/calibre/db/backend.py +++ b/src/calibre/db/backend.py @@ -400,6 +400,7 @@ class DB(object): defs['gui_restriction'] = defs['cs_restriction'] = '' defs['categories_using_hierarchy'] = [] defs['column_color_rules'] = [] + defs['column_icon_rules'] = [] defs['grouped_search_make_user_categories'] = [] defs['similar_authors_search_key'] = 'authors' defs['similar_authors_match_kind'] = 'match_any'