diff --git a/assets/base/i18n/ru.json b/assets/base/i18n/ru.json
index 553cbddc1..d88e52be4 100644
--- a/assets/base/i18n/ru.json
+++ b/assets/base/i18n/ru.json
@@ -291,6 +291,7 @@
   "custom_status.suggestions.recent_title": "Недавние",
   "custom_status.suggestions.title": "Предложения",
   "custom_status.suggestions.working_from_home": "Работаю из дома",
+  "date.unknown": "Неизвестна",
   "date_separator.today": "Cегодня",
   "date_separator.yesterday": "Вчера",
   "default_skin_tone": "Оттенок темы по умолчанию",