diff --git a/readme.id.md b/readme.id.md
index 1b3b750..4e5de63 100644
--- a/readme.id.md
+++ b/readme.id.md
@@ -75,7 +75,11 @@ Aplikasi ini dapat dipasang pada server lokal dan onlne dengan spesifikasi berik
 8. `php artisan migrate`
 9. `php artisan storage:link`
 10. `php artisan serve`
-11. Selesai (Register user baru untuk mulai mengisi silsilah).
+11. Register user baru untuk mulai mengisi silsilah.
+12. Tambahkan alamat email yang digunakan mendaftar pada file `.env`:
+    ```
+    SYSTEM_ADMIN_EMAILS=admin@email.com;other_admin@email.com
+    ```
 
 ## Testing
 Ingin mencoba automated testingnya? Silakan ketik perintah pada terminal: `vendor/bin/phpunit`
diff --git a/readme.md b/readme.md
index 064b061..ee6da48 100644
--- a/readme.md
+++ b/readme.md
@@ -70,7 +70,11 @@ This application can be installed on local server and online server with these s
 8. `php artisan migrate`
 9. `php artisan storage:link`
 10. `php artisan serve`
-11. Done (Register as new user to start using the application).
+11. Register as new user to start using the application.
+12. Add the registered email address to the `.env` file:
+    ```
+    SYSTEM_ADMIN_EMAILS=admin@email.com;other_admin@email.com
+    ```
 
 ## Testing
 This application built with testing (TDD) using in-memory sqlite database.