diff --git a/package.json b/package.json
index d983798..350fbcd 100644
--- a/package.json
+++ b/package.json
@@ -17,6 +17,7 @@
   "main": "src/index.js",
   "module": "dist/index.js",
   "source": "src/index.js",
+  "types": "src/index.d.ts",
   "scripts": {
     "prebuild": "npm run lint",
     "build": "babel src --out-dir dist",
diff --git a/src/index.d.ts b/src/index.d.ts
new file mode 100644
index 0000000..56a93fe
--- /dev/null
+++ b/src/index.d.ts
@@ -0,0 +1,19 @@
+import { EventEmitter2 } from 'eventemitter2'
+import ROSLIB from 'roslib'
+
+export class AutoRos extends EventEmitter2 {
+
+    public ros: ROSLIB.Ros;
+
+    constructor(options?: {
+        reconnectTimeOut?: number,
+        rosOptions?: {
+            encoding?: string,
+        }
+    });
+
+    connect(url: string): void;
+
+}
+
+export default AutoRos;