diff --git a/lib/l10n/intl_ja.arb b/lib/l10n/intl_ja.arb
index 0fead357..f7258cd0 100644
--- a/lib/l10n/intl_ja.arb
+++ b/lib/l10n/intl_ja.arb
@@ -1944,5 +1944,10 @@
   "@copyToClipboard": {
     "type": "text",
     "placeholders": {}
+  },
+  "mention": "メンション",
+  "@mention": {
+    "type": "text",
+    "placeholders": {}
   }
 }