diff --git a/plugin/__init__.py b/plugin/__init__.py
index 5a4bac9..1ac989b 100644
--- a/plugin/__init__.py
+++ b/plugin/__init__.py
@@ -37,9 +37,13 @@ from anki.cards import Card
 from anki.exporting import AnkiPackageExporter
 from anki.importing import AnkiPackageImporter
 from anki.notes import Note
-from anki.rsbackend import NotFoundError
 from anki.utils import joinFields, intTime, guid64, fieldChecksum
 
+try:
+    from anki.rsbackend import NotFoundError
+except:
+    NotFoundError = Exception
+
 from . import web, util