diff --git a/examples/dart-mojo.sky b/examples/dart-mojo.sky
index e69f99e1d0..c540292739 100644
--- a/examples/dart-mojo.sky
+++ b/examples/dart-mojo.sky
@@ -20,7 +20,7 @@ class WGet extends Application {
   WGet.fromHandle(MojoHandle handle) : super.fromHandle(handle);
   WGet(MojoMessagePipeEndpoint endpoint) : super(endpoint);
 
-  void initialize(List<String> args) {
+  void initialize(List<String> args, String url) {
     run(args);
   }
 
@@ -75,7 +75,7 @@ main() {
   var wget = new WGet(messagePipe.endpoints[1]);
   wget.listen();
   var shellProxy = new shell_mojom.ShellProxy.fromHandle(new MojoHandle(internals.passShellProxyHandle()));
-  wget.initializeFromShellProxy(shellProxy, ["mojo:wget", "http://www.google.com"]);
+  wget.initializeFromShellProxy(shellProxy, ["mojo:wget", "http://www.google.com"], "mojo:wget");
 }
 
 </script>