diff --git a/index.d.ts b/index.d.ts
new file mode 100644
index 0000000..52600aa
--- /dev/null
+++ b/index.d.ts
@@ -0,0 +1,8 @@
+import MovToMp4 from "./index";
+
+interface IMovToMp4 {
+  convertMovToMp4: (uri: string, newUri: string) => Promise<string>;
+}
+declare const MovToMp4: IMovToMp4;
+
+export default MovToMp4;