diff --git a/locales/en-US.yml b/locales/en-US.yml
index 664fe12c38..a3a245b8d6 100644
--- a/locales/en-US.yml
+++ b/locales/en-US.yml
@@ -110,6 +110,7 @@ common:
   verified-user: "Verified account"
   disable-animated-mfm: "Disable animated texts in a post"
   always-show-nsfw: "常に閲覧注意のメディアを表示する"
+  always-mark-nsfw: "常にメディアを閲覧注意として投稿"
   this-setting-is-this-device-only: "このデバイスのみ"
   do-not-use-in-production: 'As this is for development, do not use this in production.'
   reversi: