diff --git a/src/calibre/gui2/preferences/coloring.py b/src/calibre/gui2/preferences/coloring.py index 96216b7bf7..a3383a7b1a 100644 --- a/src/calibre/gui2/preferences/coloring.py +++ b/src/calibre/gui2/preferences/coloring.py @@ -429,7 +429,7 @@ class RuleEditor(QDialog): # {{{ b.setMinimumContentsLength(15) for key in sorted(displayable_columns(fm), - key=lambda k: sort_key(fm[k]['name']) if k != color_row_key else 0): + key=lambda k: sort_key(fm[k]['name']) if k != color_row_key else b''): if key == color_row_key and self.rule_kind != 'color': continue name = all_columns_string if key == color_row_key else fm[key]['name']