diff --git a/.env.example b/.env.example
index 329016da2..600ec8f83 100644
--- a/.env.example
+++ b/.env.example
@@ -1,5 +1,6 @@
 DB_USERNAME=postgres-user
 DB_PASSWORD=postgres-password
+DB_HOST=localhost
 
 GOVUK_NOTIFY_API_KEY=<notify-key-here-if-testing-emails-or-admin-users>
 OTP_SECRET_ENCRYPTION_KEY="<Generate this using bundle exec rake secret>"