diff --git a/user/test/com/google/gwt/user/client/WindowTest.java b/user/test/com/google/gwt/user/client/WindowTest.java
index 51c798c..085a91d 100644
--- a/user/test/com/google/gwt/user/client/WindowTest.java
+++ b/user/test/com/google/gwt/user/client/WindowTest.java
@@ -221,7 +221,7 @@
     final Label largeDOM = new Label();
     largeDOM.setPixelSize(oldClientWidth + 100, oldClientHeight + 100);
     RootPanel.get().add(largeDOM);
-    delayTestFinish(200);
+    delayTestFinish(1000);
     DeferredCommand.addCommand(new Command() {
       public void execute() {
         int newClientHeight = Window.getClientHeight();