1 files changed, 2 insertions, 2 deletions
diff --git a/ext/broadcast_channel/01_broadcast_channel.js b/ext/broadcast_channel/01_broadcast_channel.js
index a76821d55..a9a7eb991 100644
--- a/ext/broadcast_channel/01_broadcast_channel.js
+++ b/ext/broadcast_channel/01_broadcast_channel.js
@@ -83,7 +83,7 @@ class BroadcastChannel extends EventTarget {
     super();
 
     const prefix = "Failed to construct 'BroadcastChannel'";
-    webidl.requiredArguments(arguments.length, 1, { prefix });
+    webidl.requiredArguments(arguments.length, 1, prefix);
 
     this[_name] = webidl.converters["DOMString"](name, {
       prefix,
@@ -106,7 +106,7 @@ class BroadcastChannel extends EventTarget {
     webidl.assertBranded(this, BroadcastChannelPrototype);
 
     const prefix = "Failed to execute 'postMessage' on 'BroadcastChannel'";
-    webidl.requiredArguments(arguments.length, 1, { prefix });
+    webidl.requiredArguments(arguments.length, 1, prefix);
 
     if (this[_closed]) {
       throw new DOMException("Already closed", "InvalidStateError");