diff --git a/bgs.md b/bgs.md
index 93e6e43..50efd1c 100644
--- a/bgs.md
+++ b/bgs.md
@@ -73,7 +73,7 @@ PDS → BGS (Firehose) → bsky (RepoSubscription) → bsky DB → TL表示
 
 ```bash
 # bskyデータベースに接続してカーソルを設定
-$ docker compose exec database psql -U postgres -d bsky -c \"INSERT INTO subscription (service, method, state) VALUES ('wss://bgs.syu.is', 'subscribeRepos', 2) ON CONFLICT (service, method) DO UPDATE SET state = 2;\""
+$ docker compose exec database psql -U postgres -d bsky -c "INSERT INTO subscription (service, method, state) VALUES (\"wss://bgs.${PDS_HOST}\", \"subscribeRepos\", 2) ON CONFLICT (service, method) DO UPDATE SET state = 2;"
 
 # bsky再起動
 $ docker compose restart bsky