diff --git a/assets/resources/proto/battle/cs_proto.proto b/assets/resources/proto/battle/cs_proto.proto
index 95109d9e..58326b22 100644
--- a/assets/resources/proto/battle/cs_proto.proto
+++ b/assets/resources/proto/battle/cs_proto.proto
@@ -916,7 +916,7 @@ message CMMatchChoose
     repeated MFPair skill_list = 4; 
     repeated int32 baseskin = 5; 
     optional int32 hero_skin = 6; 
-    optional int32 hero_uniid = 7;
+    optional string hero_uniid = 7; 
 }
 
 message CMMatchStartGame