diff --git a/element_calcium_imaging/imaging_no_curation.py b/element_calcium_imaging/imaging_no_curation.py
index 299435eb..642e86a8 100644
--- a/element_calcium_imaging/imaging_no_curation.py
+++ b/element_calcium_imaging/imaging_no_curation.py
@@ -526,6 +526,7 @@ def make(self, key):
                 processed_dir = pathlib.Path(get_processed_root_data_dir())
                 output_dir = processed_dir / output_dir
                 output_dir.mkdir(parents=True, exist_ok=True)
+                output_dir = output_dir.as_posix()
             else:
                 raise e