diff --git a/packages/rtl/src/weborworker.pas b/packages/rtl/src/weborworker.pas
index 4d40275..678f7c5 100644
--- a/packages/rtl/src/weborworker.pas
+++ b/packages/rtl/src/weborworker.pas
@@ -1495,6 +1495,18 @@ type
     Property actions : TTJSNotificationActionDynArray Read Factions;
   end;
 
+  { TJSBroadcastChannel }
+
+  TJSBroadcastChannel = class external name 'BroadcastChannel' (TJSEventTarget)
+  private
+    FName: string; external name 'name';
+  public
+    constructor new(aChannel : string);
+    procedure postMessage(aValue : JSValue);
+    procedure close;
+    property name : string Read FName;
+  end;
+
   { --------------------------------------------------------------------
     TJSNotificationEvent
     --------------------------------------------------------------------}