diff --git a/doc/INFERENCE_TO_SERVING_CN.md b/doc/INFERENCE_TO_SERVING_CN.md
index 943f27e221ca116a56a1003633804425e06145eb..e7e909ac04be3b1a0885b3390d99a153dfbd170e 100644
--- a/doc/INFERENCE_TO_SERVING_CN.md
+++ b/doc/INFERENCE_TO_SERVING_CN.md
@@ -31,4 +31,3 @@ feed_var_names, fetch_var_names = inference_model_to_serving(
 		inference_model_dir, serving_client_dir, serving_server_dir,
 		 model_filename="model", params_filename="params")
 ```
-