diff --git a/staging_service/app.py b/staging_service/app.py
index adf255aa..e5b10a9e 100644
--- a/staging_service/app.py
+++ b/staging_service/app.py
@@ -116,6 +116,7 @@ def _make_dts_file_resolver() -> Callable[[Path], FileTypeResolution]:
 
     This injects the DTS schema into the FileTypeResolution's parser call.
     """
+
     def dts_file_resolver(path: PathPy) -> FileTypeResolution:
         # must be a ".json" file
         suffix = path.suffix[1:] if path.suffix else NO_EXTENSION