diff --git a/egs/librispeech/ASR/local/.prepare_vox.py.swp b/egs/librispeech/ASR/local/.prepare_vox.py.swp
index 19c50977c..d0e8ab6c0 100644
Binary files a/egs/librispeech/ASR/local/.prepare_vox.py.swp and b/egs/librispeech/ASR/local/.prepare_vox.py.swp differ
diff --git a/egs/librispeech/ASR/local/prepare_vox.py b/egs/librispeech/ASR/local/prepare_vox.py
index 7287c4627..9fa125e67 100755
--- a/egs/librispeech/ASR/local/prepare_vox.py
+++ b/egs/librispeech/ASR/local/prepare_vox.py
@@ -112,10 +112,10 @@ def prepare_vox(
 
         if output_dir is not None:
             supervision_set.to_file(
-                output_dir / f"vox_supervisions_{part}.jsonl.gz"
+                output_dir / f"{subset_name}_supervisions_{part}.jsonl.gz"
             )
             recording_set.to_file(
-                output_dir / f"vox_recordings_{part}.jsonl.gz"
+                output_dir / f"{subset_name}_recordings_{part}.jsonl.gz"
             )
 
         manifests[part] = {