diff --git a/examples/aishell/asr0/conf/deepspeech2.yaml b/examples/aishell/asr0/conf/deepspeech2.yaml
index 338810fa..fb699864 100644
--- a/examples/aishell/asr0/conf/deepspeech2.yaml
+++ b/examples/aishell/asr0/conf/deepspeech2.yaml
@@ -54,7 +54,7 @@ ctc_grad_norm_type: instance
 ###########################################
 n_epoch: 80
 accum_grad: 1
-lr: 2e-3
+lr: 2.0e-3
 lr_decay: 0.83
 weight_decay: 1.0e-6
 global_grad_clip: 3.0
diff --git a/examples/aishell/asr0/conf/deepspeech2_online.yaml b/examples/aishell/asr0/conf/deepspeech2_online.yaml
index b5f164eb..ef01ac59 100644
--- a/examples/aishell/asr0/conf/deepspeech2_online.yaml
+++ b/examples/aishell/asr0/conf/deepspeech2_online.yaml
@@ -56,7 +56,7 @@ blank_id: 0
 ###########################################
 n_epoch: 65
 accum_grad: 1
-lr: 5e-4
+lr: 5.0e-4
 lr_decay: 0.93
 weight_decay: 1.0e-6
 global_grad_clip: 3.0
diff --git a/examples/librispeech/asr0/conf/deepspeech2.yaml b/examples/librispeech/asr0/conf/deepspeech2.yaml
index 0b0a1550..0307b9f3 100644
--- a/examples/librispeech/asr0/conf/deepspeech2.yaml
+++ b/examples/librispeech/asr0/conf/deepspeech2.yaml
@@ -55,9 +55,9 @@ blank_id: 0
 ###########################################
 n_epoch: 50
 accum_grad: 1
-lr: 1e-3
+lr: 1.0e-3
 lr_decay: 0.83
-weight_decay: 1e-06
+weight_decay: 1.0e-6
 global_grad_clip: 5.0
 log_interval: 100
 checkpoint:
diff --git a/examples/librispeech/asr0/conf/deepspeech2_online.yaml b/examples/librispeech/asr0/conf/deepspeech2_online.yaml
index 8bd5a672..a0d2bcfe 100644
--- a/examples/librispeech/asr0/conf/deepspeech2_online.yaml
+++ b/examples/librispeech/asr0/conf/deepspeech2_online.yaml
@@ -57,9 +57,9 @@ blank_id: 0
 ###########################################
 n_epoch: 50
 accum_grad: 4
-lr: 1e-3
+lr: 1.0e-3
 lr_decay: 0.83
-weight_decay: 1e-06
+weight_decay: 1.0e-6
 global_grad_clip: 5.0
 log_interval: 100
 checkpoint:
diff --git a/examples/tiny/asr0/conf/deepspeech2.yaml b/examples/tiny/asr0/conf/deepspeech2.yaml
index a8d77388..64d432e2 100644
--- a/examples/tiny/asr0/conf/deepspeech2.yaml
+++ b/examples/tiny/asr0/conf/deepspeech2.yaml
@@ -55,7 +55,7 @@ blank_id: 0
 ###########################################
 n_epoch: 5
 accum_grad: 1
-lr: 1e-5 
+lr: 1.0e-5 
 lr_decay: 0.8 
 weight_decay: 1.0e-6
 global_grad_clip: 5.0
diff --git a/examples/tiny/asr0/conf/deepspeech2_online.yaml b/examples/tiny/asr0/conf/deepspeech2_online.yaml
index a5b6e3f7..74a4dc81 100644
--- a/examples/tiny/asr0/conf/deepspeech2_online.yaml
+++ b/examples/tiny/asr0/conf/deepspeech2_online.yaml
@@ -57,7 +57,7 @@ blank_id: 0
 ###########################################
 n_epoch: 5
 accum_grad: 1
-lr: 1e-5 
+lr: 1.0e-5 
 lr_decay: 1.0 
 weight_decay: 1.0e-6
 global_grad_clip: 5.0
diff --git a/examples/wenetspeech/asr1/local/data.sh b/examples/wenetspeech/asr1/local/data.sh
index 7dd478d1..d216dd84 100755
--- a/examples/wenetspeech/asr1/local/data.sh
+++ b/examples/wenetspeech/asr1/local/data.sh
@@ -96,7 +96,7 @@ if [ ${stage} -le 1 ] && [ ${stop_stage} -ge 1 ]; then
     python3 ${MAIN_ROOT}/utils/build_vocab.py \
     --unit_type="char" \
     --count_threshold=0 \
-    --vocab_path="data/vocab.txt" \
+    --vocab_path="data/lang_char/vocab.txt" \
     --manifest_paths "data/manifest.train.raw"
 
     if [ $? -ne 0 ]; then