diff --git a/.changeset/little-seahorses-argue.md b/.changeset/little-seahorses-argue.md
new file mode 100644
index 000000000000..fb1c0d47af67
--- /dev/null
+++ b/.changeset/little-seahorses-argue.md
@@ -0,0 +1,5 @@
+---
+'@sveltejs/adapter-static': patch
+---
+
+Update README
diff --git a/packages/adapter-static/README.md b/packages/adapter-static/README.md
index 8da5c9dbfa8f..f5aa6bd832dd 100644
--- a/packages/adapter-static/README.md
+++ b/packages/adapter-static/README.md
@@ -162,7 +162,7 @@ You will have to prevent GitHub's provided Jekyll from managing your site by put
 A config for GitHub Pages might look like the following:
 
 ```js
-const dev = process.env.NODE_ENV === 'development';
+const dev = process.argv.includes('dev');
 
 /** @type {import('@sveltejs/kit').Config} */
 const config = {