diff --git a/modules/capturesheep/api_changemts.go b/modules/capturesheep/api_changemts.go
index 3082907a0..c08dd2164 100644
--- a/modules/capturesheep/api_changemts.go
+++ b/modules/capturesheep/api_changemts.go
@@ -28,7 +28,14 @@ func (this *apiComp) ChangeMts(session comm.IUserSession, req *pb.CapturesheepCh
 		}
 		return
 	}
-
+	if dragon, err = this.module.dragon.QueryDragonById(session.GetUserId(), req.Mid); err != nil {
+		errdata = &pb.ErrorData{
+			Code:    pb.ErrorCode_DBError,
+			Title:   pb.ErrorCode_DBError.ToString(),
+			Message: err.Error(),
+		}
+		return
+	}
 	info.Defmts = dragon.Id
 	if err = this.module.modelCaptureSheep.Change(session.GetUserId(), map[string]interface{}{
 		"defmts": info.Defmts,
@@ -40,6 +47,6 @@ func (this *apiComp) ChangeMts(session comm.IUserSession, req *pb.CapturesheepCh
 		}
 		return
 	}
-	session.SendMsg(string(this.module.GetType()), "changemts", &pb.CapturesheepChangeMtsResp{})
+	session.SendMsg(string(this.module.GetType()), "changemts", &pb.CapturesheepChangeMtsResp{Mid: req.Mid})
 	return
 }