diff --git a/src/main/java/helloworld/HelloWorld.java b/src/main/java/helloworld/HelloWorld.java
index d174991..291fac8 100644
--- a/src/main/java/helloworld/HelloWorld.java
+++ b/src/main/java/helloworld/HelloWorld.java
@@ -1,7 +1,7 @@
 package helloworld;
 
 /**
- * @author yihua.huang@dianping.com
+ * @author  yihua.huang@dianping.com
  */
 public interface HelloWorld {