diff --git a/src/calibre/gui2/dialogs/template_dialog.py b/src/calibre/gui2/dialogs/template_dialog.py
index 67df51157b..0cab0d6ddc 100644
--- a/src/calibre/gui2/dialogs/template_dialog.py
+++ b/src/calibre/gui2/dialogs/template_dialog.py
@@ -676,7 +676,7 @@ class TemplateDialog(QDialog, Ui_TemplateDialog):
             self.last_text = cur_text
             self.highlighter.regenerate_paren_positions()
             self.text_cursor_changed()
-            if self.break_box.checkState() == 0:
+            if self.break_box.checkState() == Qt.CheckState.Unchecked:
                 self.display_values(cur_text)
 
     def display_values(self, txt):