diff --git a/locales/en-US.yml b/locales/en-US.yml
index 8d2d5176d..daca6fee0 100644
--- a/locales/en-US.yml
+++ b/locales/en-US.yml
@@ -873,6 +873,7 @@ common/views/components/password-settings.vue:
   enter-new-password-again: "Enter the new password again"
   not-match: "The new passwords do not match"
   changed: "Password changed"
+  failed: "パスワード変更に失敗しました"
 desktop/views/components/sub-note-content.vue:
   private: "This post is private"
   deleted: "This post has been deleted"