diff --git a/.env.development b/.env.development
index a03fb0f13b..511acd6a97 100644
--- a/.env.development
+++ b/.env.development
@@ -6,5 +6,8 @@ DB_HOST=$PWD/data/postgres
 DB_USER=mastodon
 DB_NAME=mastodon_dev
 REDIS_URL=unix://$PWD/data/redis/redis-dev.sock
+TH_MENTION_SPAM_HEURISTIC_AUTO_LIMIT_ACTIVE=can-spam
+TH_MENTION_SPAM_THRESHOLD=2
+TH_STAFF_ACCOUNT=staff
 
 TH_USE_INVITE_QUOTA=1