diff --git a/src/calibre/gui2/tweak_book/boss.py b/src/calibre/gui2/tweak_book/boss.py
index 690d5bef5a..0388c84314 100644
--- a/src/calibre/gui2/tweak_book/boss.py
+++ b/src/calibre/gui2/tweak_book/boss.py
@@ -1518,6 +1518,7 @@ class Boss(QObject):
         self.apply_container_update_to_gui()
         if master in editors:
             self.show_editor(master)
+        self.gui.file_list.merge_completed(master)
         self.gui.message_popup(_('{} files merged').format(len(names)))
 
     @in_thread_job
diff --git a/src/calibre/gui2/tweak_book/file_list.py b/src/calibre/gui2/tweak_book/file_list.py
index 6d2c95a184..0e9d454b21 100644
--- a/src/calibre/gui2/tweak_book/file_list.py
+++ b/src/calibre/gui2/tweak_book/file_list.py
@@ -1274,6 +1274,9 @@ class FileListWidget(QWidget):
         self.setFocusProxy(self.file_list)
         self.edit_next_file = self.file_list.edit_next_file
 
+    def merge_completed(self, master_name):
+        self.file_list.select_name(master_name, set_as_current_index=True)
+
     def build(self, container, preserve_state=True):
         self.file_list.build(container, preserve_state=preserve_state)