diff --git a/docs/src/api/class-worker.md b/docs/src/api/class-worker.md
index 4bd42428b4..f95852edf3 100644
--- a/docs/src/api/class-worker.md
+++ b/docs/src/api/class-worker.md
@@ -96,7 +96,7 @@ Optional argument to pass to [`param: expression`].
 ## method: Worker.url
 - returns: <[string]>
 
-## method: Worker.waitForClose
+## async method: Worker.waitForClose
 * langs: csharp, java
 - returns: <[Worker]>