diff --git a/index.d.ts b/index.d.ts
index d8bc5b9..71ba8d9 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -1 +1,7 @@
-export default function convert(url: string): string;
+declare module 'react-native-video-cache' {
+  function convert(url: string): string;
+  function convertAsync(url: string): Promise<string>;
+
+  export default convert;
+  export const convertAsync;
+}