1 files changed, 3 insertions, 3 deletions
diff --git a/runtime/js/99_main.js b/runtime/js/99_main.js
index 7f24e10cd..977755007 100644
--- a/runtime/js/99_main.js
+++ b/runtime/js/99_main.js
@@ -129,15 +129,15 @@ delete Object.prototype.__proto__;
   }
 
   function opPostMessage(data) {
-    core.jsonOpSync("op_worker_post_message", null, data);
+    core.opSync("op_worker_post_message", null, data);
   }
 
   function opCloseWorker() {
-    core.jsonOpSync("op_worker_close");
+    core.opSync("op_worker_close");
   }
 
   function opMainModule() {
-    return core.jsonOpSync("op_main_module");
+    return core.opSync("op_main_module");
   }
 
   function runtimeStart(runtimeOptions, source) {