diff --git a/datashuttle/datashuttle.py b/datashuttle/datashuttle.py
index 2800c93a..8ce229e1 100644
--- a/datashuttle/datashuttle.py
+++ b/datashuttle/datashuttle.py
@@ -1459,7 +1459,7 @@ def _update_settings_with_new_canonical_keys(self, settings: Dict):
 
     def _check_top_level_folder(self, top_level_folder):
         """
-Raise an error if ``top_level_folder`` not correct.
+        Raise an error if ``top_level_folder`` not correct.
         """
         canonical_top_level_folders = canonical_folders.get_top_level_folders()