diff --git a/server/tools/protobuild/cs_proto.proto b/server/tools/protobuild/cs_proto.proto
index 8cb54760..e774dde9 100755
--- a/server/tools/protobuild/cs_proto.proto
+++ b/server/tools/protobuild/cs_proto.proto
@@ -245,6 +245,7 @@ message MFVec3
      property_subtype: 对象uniid
      value: 等级
      value2: 经验
+     value3: 本等级最大经验 <0 已满级
   property_type: 56 同步对象升级
      property_subtype: 对象uniid
      value: 老等级