diff --git a/server/tools/protobuild/cs_proto.proto b/server/tools/protobuild/cs_proto.proto
index 9e095ba9..c29f074f 100755
--- a/server/tools/protobuild/cs_proto.proto
+++ b/server/tools/protobuild/cs_proto.proto
@@ -816,6 +816,11 @@ message CMMove
 
     optional bool jump = 32; //跳伞
     optional bool get_down = 33; //下车
+    /*上车
+      loot的uniid或者队友的uniid
+      注意：当客户端同时发了下车和上车的时候服务器只处理上车，忽略下车
+     */
+    optional int32 get_on = 36;
 }
 
 //丢弃道具