diff --git a/msg-center-api/src/main/java/cn/axzo/msg/center/api/request/v4/MessageSendRequestV4.java b/msg-center-api/src/main/java/cn/axzo/msg/center/api/request/v4/MessageSendRequestV4.java
index 11fa2351..296fa175 100644
--- a/msg-center-api/src/main/java/cn/axzo/msg/center/api/request/v4/MessageSendRequestV4.java
+++ b/msg-center-api/src/main/java/cn/axzo/msg/center/api/request/v4/MessageSendRequestV4.java
@@ -36,7 +36,7 @@ public class MessageSendRequestV4 implements Serializable {
     /**
      * 更多的IM信息, 发送IM时, 根据需要传入
      */
-    private ImSendInfo  imSendInfo;
+    private ImSendInfo imSendInfo;
 
     // !! internal fields