diff --git a/detection/luna16_prepare_images.py b/detection/luna16_prepare_images.py
index 828e449a1b..0e9047e5ca 100644
--- a/detection/luna16_prepare_images.py
+++ b/detection/luna16_prepare_images.py
@@ -88,7 +88,7 @@ def main():
     for data_list_key in ["training", "validation"]:
         # create a data loader
         process_data = load_decathlon_datalist(
-            args.orig_data_list_file_path,
+            args.data_list_file_path,
             is_segmentation=True,
             data_list_key=data_list_key,
             base_dir=args.orig_data_base_dir,