diff --git a/third_party/url.d.ts b/third_party/url.d.ts
index ced41a3..540bc36 100644
--- a/third_party/url.d.ts
+++ b/third_party/url.d.ts
@@ -141,3 +141,5 @@ declare module 'url' {
     [Symbol.iterator](): IterableIterator<[string, string]>;
   }
 }
+
+export {};