diff --git a/demo/quick_start/preprocess.sh b/demo/quick_start/preprocess.sh
index fb2bee98beb268e88d82b64332273aa10399ff42..fe2acbbd74898fa3d12ddee3271658043c43e32e 100755
--- a/demo/quick_start/preprocess.sh
+++ b/demo/quick_start/preprocess.sh
@@ -20,6 +20,8 @@
 
 set -e
 
+export LC_ALL=C
+
 mkdir -p data/tmp
 python preprocess.py -i data/reviews_Electronics_5.json.gz
 # uniq and shuffle
diff --git a/doc/demo/quick_start/index_en.md b/doc/demo/quick_start/index_en.md
index ee3fa2a2166f497524663574270b239a6170ab19..e7d74512292c89233373c48d05895794d56702d8 100644
--- a/doc/demo/quick_start/index_en.md
+++ b/doc/demo/quick_start/index_en.md
@@ -134,7 +134,7 @@ def process(settings, file_name):
 You need to add a data provider definition `define_py_data_sources2` in our network configuration. This definition specifies:
 
 - The path of the training and testing data (`data/train.list`, `data/test.list`).
-- The location of the data provider file (`dataprovider_pow`).
+- The location of the data provider file (`dataprovider_bow`).
 - The function to call to get data. (`process`).
 - Additional arguments or data. Here it passes the path of word dictionary.