diff --git a/doc/JAVA_SDK.md b/doc/JAVA_SDK.md
index 03a88c59065688405f37a2a40c5bef2381f2d1df..17f19058495c591232c1303199f0273906039667 100644
--- a/doc/JAVA_SDK.md
+++ b/doc/JAVA_SDK.md
@@ -5,6 +5,7 @@ Paddle Serving provides Java SDK，which supports predict on the Client side wit
 
 ## Getting started
 
+
 ### Prerequisites
 
 ```
diff --git a/doc/JAVA_SDK_CN.md b/doc/JAVA_SDK_CN.md
index 046ad78d26b4fc4d2083dc4bb6ecb2df85652080..f624a4403371f5b284f34cbf310fef64d59602d9 100644
--- a/doc/JAVA_SDK_CN.md
+++ b/doc/JAVA_SDK_CN.md
@@ -4,7 +4,6 @@
 
 Paddle Serving 提供了 Java SDK，支持 Client 端用 Java 语言进行预测，本文档说明了如何使用 Java SDK。
 
-
 ## 快速开始
 
 ### 环境要求