diff --git a/net/src/main/java/com/zfoo/net/packet/model/PacketAttachmentType.java b/net/src/main/java/com/zfoo/net/packet/model/PacketAttachmentType.java
index da2d0a4e..95dd66d7 100644
--- a/net/src/main/java/com/zfoo/net/packet/model/PacketAttachmentType.java
+++ b/net/src/main/java/com/zfoo/net/packet/model/PacketAttachmentType.java
@@ -47,6 +47,7 @@ public enum PacketAttachmentType {
      */
     NO_ANSWER_PACKET((byte) 4, NoAnswerAttachment.class),
 
+    
     ;