diff --git a/examples/csmsc/vits/local/synthesize.sh b/examples/csmsc/vits/local/synthesize.sh
index c15d5f99f..a4b35ec0a 100755
--- a/examples/csmsc/vits/local/synthesize.sh
+++ b/examples/csmsc/vits/local/synthesize.sh
@@ -15,4 +15,4 @@ if [ ${stage} -le 0 ] && [ ${stop_stage} -ge 0 ]; then
         --phones_dict=dump/phone_id_map.txt \
         --test_metadata=dump/test/norm/metadata.jsonl \
         --output_dir=${train_output_path}/test
-fi
\ No newline at end of file
+fi
diff --git a/examples/csmsc/vits/local/train.sh b/examples/csmsc/vits/local/train.sh
index 42fff26ca..289837a5d 100755
--- a/examples/csmsc/vits/local/train.sh
+++ b/examples/csmsc/vits/local/train.sh
@@ -3,6 +3,11 @@
 config_path=$1
 train_output_path=$2
 
+# install monotonic_align
+cd ${MAIN_ROOT}/paddlespeech/t2s/models/vits/monotonic_align
+python3 setup.py build_ext --inplace
+cd -
+
 python3 ${BIN_DIR}/train.py \
     --train-metadata=dump/train/norm/metadata.jsonl \
     --dev-metadata=dump/dev/norm/metadata.jsonl \