diff --git a/install/outline-install.sh b/install/outline-install.sh
index ff20484bf..1cb332de2 100644
--- a/install/outline-install.sh
+++ b/install/outline-install.sh
@@ -33,7 +33,7 @@ cp .env.sample .env
 export NODE_ENV=development
 sed -i 's/NODE_ENV=production/NODE_ENV=development/g' /opt/outline/.env
 sed -i "s/generate_a_new_key/${SECRET_KEY}/g" /opt/outline/.env
-sed -i "s/user:pass@postgres/${DB_USER}:${DB_PASS}@localhost/g" /opt/outline/.env
+sed -i "s/user:pass@postgres/${PG_DB_USER}:${PG_DB_PASS}@localhost/g" /opt/outline/.env
 sed -i 's/redis:6379/localhost:6379/g' /opt/outline/.env
 sed -i "5s#URL=#URL=http://${LOCAL_IP}#g" /opt/outline/.env
 sed -i 's/FORCE_HTTPS=true/FORCE_HTTPS=false/g' /opt/outline/.env