diff --git a/game.proto b/game.proto
index d9f18af..58ca586 100644
--- a/game.proto
+++ b/game.proto
@@ -135,7 +135,7 @@ message RoleLogOutRar {
 }
 
 message RoleDropReq {
-  string key = 1;
+  int32 group_id = 1;
 }
 
 message RoleDropRsp {
--
libgit2 0.21.2