diff --git a/README.md b/README.md
index ca3a73e..4cabf8a 100644
--- a/README.md
+++ b/README.md
@@ -79,7 +79,7 @@ console.log(data.test);
 
 MIT © [Dima Grossman](http://blog.grossman.io) && Tomer Barnea
 
-[npm-url]: https://npmjs.org/package/await-to-js
+[npm-url]: https://www.npmjs.org/package/await-to-js
 [npm-image]: https://img.shields.io/npm/v/await-to-js.svg?style=flat-square
 
 [travis-url]: https://travis-ci.org/scopsy/await-to-js
@@ -91,4 +91,4 @@ MIT © [Dima Grossman](http://blog.grossman.io) && Tomer Barnea
 [depstat-url]: https://david-dm.org/scopsy/await-to-js
 [depstat-image]: https://david-dm.org/scopsy/await-to-js.svg?style=flat-square
 
-[download-badge]: http://img.shields.io/npm/dm/await-to-js.svg?style=flat-square
+[download-badge]: https://img.shields.io/npm/dm/await-to-js.svg?style=flat-square
diff --git a/src/await-to-js.ts b/src/await-to-js.ts
index af852f5..f05d47e 100644
--- a/src/await-to-js.ts
+++ b/src/await-to-js.ts
@@ -15,7 +15,8 @@ export function to<T, U = Error> (
         return [parsedError, undefined];
       }
 
-      return [err, undefined];
+      const defaultError = err ? err : new Error();
+      return [defaultError as U, undefined];
     });
 }