diff --git a/src/frontend/langs/en-US.json b/src/frontend/langs/en-US.json
index 58a9748..5b25a53 100644
--- a/src/frontend/langs/en-US.json
+++ b/src/frontend/langs/en-US.json
@@ -1,4 +1,5 @@
 {
+	"$languageName": "日本語",
 	"title": "Misskey Tools",
 	"description1": "Make Misskey more effective! All-in-one tools with various features.",
 	"description2": "Let's input your instance URL and use Misskey Tools now!",