diff --git a/qt/aqt/editor.py b/qt/aqt/editor.py
index 4ae96f0cd..a9ee3db72 100644
--- a/qt/aqt/editor.py
+++ b/qt/aqt/editor.py
@@ -118,6 +118,7 @@ class Editor:
         self.mw = mw
         self.widget = widget
         self.parentWindow = parentWindow
+        self.nid: NoteId | None = None
         # legacy argument provided?
         if addMode is not None:
             editor_mode = EditorMode.ADD_CARDS if addMode else EditorMode.EDIT_CURRENT