diff --git a/src/calibre/gui2/tweak_book/boss.py b/src/calibre/gui2/tweak_book/boss.py
index 455e5ec6a9..87b05ab1e9 100644
--- a/src/calibre/gui2/tweak_book/boss.py
+++ b/src/calibre/gui2/tweak_book/boss.py
@@ -429,6 +429,7 @@ class Boss(QObject):
 
     @in_thread_job
     def delete_requested(self, spine_items, other_items):
+        QApplication.beep()
         self.add_savepoint(_('Before: Delete files'))
         self.commit_dirty_opf()
         c = current_container()