diff --git a/src/internal/types.ts b/src/internal/types.ts
index 8e685c1b41..ab9c284545 100644
--- a/src/internal/types.ts
+++ b/src/internal/types.ts
@@ -1,4 +1,8 @@
 /** @prettier */
+
+// https://github.com/microsoft/TypeScript/issues/40462#issuecomment-689879308
+/// <reference lib="esnext.asynciterable" />
+
 import { Observable } from './Observable';
 import { Subscription } from './Subscription';