diff --git a/astro/server/README.md b/astro/server/README.md
index f5b8306..48aae30 100644
--- a/astro/server/README.md
+++ b/astro/server/README.md
@@ -4,5 +4,5 @@ Static build: `{"output":"static"}`
 
 1. Use `Nixpacks`
 2. Set `Ports Exposed` to `4321` (or any port you set in your `astro.config.mjs` file)
-3. Set `Start Command` to `node dist/server/entry.mjs`
-   - Alternatively, you can set the `start script` inside `package.json` to `node dist/server/entry.mjs`. Then Nixpacks will automatically use it as the start command.
+3. Set `Start Command` to `HOST=0.0.0.0 node dist/server/entry.mjs`
+   - Alternatively, you can set the `start script` inside `package.json` to `HOST=0.0.0.0 node dist/server/entry.mjs`. Then Nixpacks will automatically use it as the start command.