diff --git a/index.d.ts b/index.d.ts
new file mode 100644
index 0000000..e6f1c05
--- /dev/null
+++ b/index.d.ts
@@ -0,0 +1,6 @@
+import type { NextConfig } from "next";
+
+declare module "next-with-less" {
+	function NextWithLess(config: NextConfig): NextConfig;
+	export default NextWithLess;
+}
diff --git a/package.json b/package.json
index 0f03e97..40683cb 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "version": "3.0.1",
   "description": "Next.js + Less CSS Support",
   "main": "index.js",
+  "types": "index.d.ts",
   "repository": "https://github.com/elado/next-with-less.git",
   "homepage": "https://github.com/elado/next-with-less#readme",
   "author": "Elad Ossadon <elad@ossadon.com>",
@@ -30,6 +31,7 @@
   },
   "files": [
     "/index.js",
+    "/index.d.ts",
     "/dist"
   ],
   "packageManager": "yarn@3.5.0"