diff --git a/doc/src/deepspeech_architecture.md b/doc/src/deepspeech_architecture.md
index c4c102ba..ffa37aff 100644
--- a/doc/src/deepspeech_architecture.md
+++ b/doc/src/deepspeech_architecture.md
@@ -183,5 +183,3 @@ bash run.sh --stage 0 --stop_stage 2 --model_type offline --conf_path conf/deeps
 cd examples/aishell/s0
 bash run.sh --stage 3 --stop_stage 5 --model_type offline --conf_path conf/deepspeech2.yaml
 ```
-
-
diff --git a/examples/librispeech/s1/conf/transformer.yaml b/examples/librispeech/s1/conf/transformer.yaml
index bc2ec606..4aa7b915 100644
--- a/examples/librispeech/s1/conf/transformer.yaml
+++ b/examples/librispeech/s1/conf/transformer.yaml
@@ -33,7 +33,7 @@ collator:
   keep_transcription_text: False
   sortagrad: True 
   shuffle_method: batch_shuffle
-  num_workers: 2
+  num_workers: 0
 
 
 # network architecture
@@ -67,6 +67,8 @@ model:
     # hybrid CTC/attention
     model_conf:
         ctc_weight: 0.3
+        ctc_dropoutrate: 0.0
+        ctc_grad_norm_type: instance
         lsm_weight: 0.1     # label smoothing option
         length_normalized_loss: false