diff --git a/locales/pt.yml b/locales/pt.yml
index 4f2fc1a45..18696875d 100644
--- a/locales/pt.yml
+++ b/locales/pt.yml
@@ -168,6 +168,9 @@ common/views/components/games/reversi/reversi.vue:
   matching:
     waiting-for: "{}を待っています"
     cancel: "キャンセル"
+common/views/components/games/reversi/reversi.game.vue:
+  surrender: "投了"
+  surrendered: "投了により"
 common/views/components/games/reversi/reversi.index.vue:
   title: "Misskey Reversi"
   sub-title: "他のMisskeyユーザーとリバーシで対戦しよう"