diff --git a/index.d.ts b/index.d.ts
new file mode 100644
index 0000000..681e819
--- /dev/null
+++ b/index.d.ts
@@ -0,0 +1,5 @@
+interface Subscription {
+  unsubscribe: () => void
+}
+
+export default function checkAll(container: Element): Subscription;
diff --git a/package.json b/package.json
index ea2006e..dd992ca 100644
--- a/package.json
+++ b/package.json
@@ -4,10 +4,12 @@
   "version": "0.2.4",
   "main": "dist/check-all.umd.js",
   "module": "dist/check-all.esm.js",
+  "types": "index.d.ts",
   "license": "MIT",
   "repository": "github/check-all",
   "files": [
-    "dist"
+    "dist",
+    "index.d.ts"
   ],
   "scripts": {
     "clean": "rm -rf dist",