1 files changed, 7 insertions, 4 deletions
diff --git a/runtime/js/11_workers.js b/runtime/js/11_workers.js
index 38267f571..b5a8a9d0c 100644
--- a/runtime/js/11_workers.js
+++ b/runtime/js/11_workers.js
@@ -318,10 +318,13 @@
         );
         options = { transfer };
       } else {
-        options = webidl.converters.PostMessageOptions(transferOrOptions, {
-          prefix,
-          context: "Argument 2",
-        });
+        options = webidl.converters.StructuredSerializeOptions(
+          transferOrOptions,
+          {
+            prefix,
+            context: "Argument 2",
+          },
+        );
       }
       const { transfer } = options;
       const data = serializeJsMessageData(message, transfer);