diff --git a/tools/make_lmdb.py b/tools/make_lmdb.py
index 322c78c..cf891f9 100644
--- a/tools/make_lmdb.py
+++ b/tools/make_lmdb.py
@@ -56,4 +56,4 @@ def main():
 
 
 if __name__ == '__main__':
-    main()
\ No newline at end of file
+    main()
diff --git a/wekws/bin/train.py b/wekws/bin/train.py
index 06c7526..632a240 100644
--- a/wekws/bin/train.py
+++ b/wekws/bin/train.py
@@ -112,8 +112,8 @@ def main():
     cv_conf['spec_aug'] = False
     cv_conf['shuffle'] = False
 
-    train_dataset = Dataset(args.train_data, 
-                            train_conf, 
+    train_dataset = Dataset(args.train_data,
+                            train_conf,
                             reverb_lmdb=args.reverb_lmdb,
                             noise_lmdb=args.noise_lmdb)
     cv_dataset = Dataset(args.cv_data, cv_conf)