diff --git a/DOCKER_COMPOSE_SETUP.md b/DOCKER_COMPOSE_SETUP.md
index 7ec82a279..47d4ba346 100644
--- a/DOCKER_COMPOSE_SETUP.md
+++ b/DOCKER_COMPOSE_SETUP.md
@@ -37,6 +37,7 @@ This setup uses `serversideup/php:8.4-fpm-nginx` as the base image and is design
 4. **Build and start the containers:**
    ```bash
    docker compose up -d db redis  # Bootstrap the database and Redis.
+   # Wait 30 seconds for them to complete first boot.
    docker compose up -d
    ```