diff --git a/.changeset/kind-wolves-yawn.md b/.changeset/kind-wolves-yawn.md
new file mode 100644
index 000000000000..de777eaaa6ac
--- /dev/null
+++ b/.changeset/kind-wolves-yawn.md
@@ -0,0 +1,5 @@
+---
+'@sveltejs/adapter-auto': patch
+---
+
+Add missing file to adapter-auto package
diff --git a/packages/adapter-auto/package.json b/packages/adapter-auto/package.json
index 49266ddc8d1f..c39b3a385b76 100644
--- a/packages/adapter-auto/package.json
+++ b/packages/adapter-auto/package.json
@@ -18,7 +18,9 @@
 	"types": "index.d.ts",
 	"files": [
 		"files",
-		"index.d.ts"
+		"index.js",
+		"index.d.ts",
+		"adapters.js"
 	],
 	"scripts": {
 		"lint": "eslint --ignore-path .gitignore \"**/*.{ts,js,svelte}\" && npm run check-format",