diff --git a/api/ovdashboard_api/dav_file.py b/api/ovdashboard_api/dav_file.py
index c6f9902..2431995 100644
--- a/api/ovdashboard_api/dav_file.py
+++ b/api/ovdashboard_api/dav_file.py
@@ -14,8 +14,9 @@ _logger = logging.getLogger(__name__)
 async def _get_buffer(
     remote_path: Any,
 ) -> BytesIO:
+
     @run_in_executor
-    def buffer_inner(resource: Resource) -> BytesIO:
+    def _get_buffer_inner(resource: Resource) -> BytesIO:
         _logger.info(f"updating {resource}")
         print(f"updating {resource}")
         buffer = BytesIO()
@@ -23,7 +24,7 @@ async def _get_buffer(
         return buffer
 
     resource = webdav_resource(remote_path)
-    return await buffer_inner(resource)
+    return await _get_buffer_inner(resource)
 
 
 @dataclass(frozen=True)