diff --git a/src/calibre/gui2/tweak_book/boss.py b/src/calibre/gui2/tweak_book/boss.py
index b7601577d8..54ea0b0a30 100644
--- a/src/calibre/gui2/tweak_book/boss.py
+++ b/src/calibre/gui2/tweak_book/boss.py
@@ -373,6 +373,8 @@ class Boss(QObject):
             if oldname in editors:
                 editors[newname] = editors.pop(oldname)
                 self.gui.central.rename_editor(editors[newname], newname)
+            if self.gui.preview.current_name == oldname:
+                self.gui.preview.current_name = newname
         self.apply_container_update_to_gui()
     # }}}