diff --git a/role.proto b/role.proto
index 141ac65..1f3686f 100644
--- a/role.proto
+++ b/role.proto
@@ -205,6 +205,6 @@ message RoleMoppingUpReq {
 }
 
 message RoleMoppingUpRsp {
-  string reward = 1;
-  string drop_reward = 2;
+  repeated string reward = 1;
+  repeated string drop_reward = 2;
 }
--
libgit2 0.21.2