diff --git a/locales/en.yml b/locales/en.yml
index 0b1573707..0a12ef6c2 100644
--- a/locales/en.yml
+++ b/locales/en.yml
@@ -88,6 +88,7 @@ common:
   i-like-sushi: "I prefer sushi rather than pudding"
   show-reversi-board-labels: "Show row and column labels in Reversi"
   verified-user: "Verified user"
+  disable-animated-mfm: "投稿内の動きのあるテキストを無効にする"
   reversi:
     drawn: "Draw"
     my-turn: "Your turn"