diff --git a/egs/librispeech/ASR/.prepare_vox.sh.swp b/egs/librispeech/ASR/.prepare_vox.sh.swp
index 8279c5ccc..7ee5321dc 100644
Binary files a/egs/librispeech/ASR/.prepare_vox.sh.swp and b/egs/librispeech/ASR/.prepare_vox.sh.swp differ
diff --git a/egs/librispeech/ASR/prepare_vox.sh b/egs/librispeech/ASR/prepare_vox.sh
index 9a4da2ae1..c3ab6e63d 100755
--- a/egs/librispeech/ASR/prepare_vox.sh
+++ b/egs/librispeech/ASR/prepare_vox.sh
@@ -51,7 +51,6 @@ vocab_sizes=(
   500
 )
 
-spk_id=$1
 # All files generated by this script are saved in "data".
 # You can safely remove "data" and rerun this script to regenerate it.
 mkdir -p data