diff --git a/egs/librispeech/ASR/.conv_feat_vis.py.swp b/egs/librispeech/ASR/.conv_feat_vis.py.swp
index f930469b7..2b299924d 100644
Binary files a/egs/librispeech/ASR/.conv_feat_vis.py.swp and b/egs/librispeech/ASR/.conv_feat_vis.py.swp differ
diff --git a/egs/librispeech/ASR/conv_feat_vis.py b/egs/librispeech/ASR/conv_feat_vis.py
index 33752d066..d335f3e5f 100644
--- a/egs/librispeech/ASR/conv_feat_vis.py
+++ b/egs/librispeech/ASR/conv_feat_vis.py
@@ -3,7 +3,7 @@ import numpy as np
 import matplotlib.pyplot as plt
 from tqdm import tqdm
 
-spk_list = glob('./conv_feat/*')
+spk_list = sorted(glob('./conv_feat/*'))
 for spk in tqdm(spk_list):
     spk_id = spk.split('/')[-1]
     feats = []