diff --git a/suitcase/mongo_normalized/__init__.py b/suitcase/mongo_normalized/__init__.py
index bde59d8..07d08ed 100644
--- a/suitcase/mongo_normalized/__init__.py
+++ b/suitcase/mongo_normalized/__init__.py
@@ -299,5 +299,5 @@ def _get_database(uri, tls):
         return client.get_database()
 
 
-class DuplicateUniqueID(Exception): 
-    ...
+class DuplicateUniqueID(Exception):
+    ...
\ No newline at end of file