diff --git a/user/test/com/google/gwt/user/client/ui/StackPanelTest.java b/user/test/com/google/gwt/user/client/ui/StackPanelTest.java
index 925e0f9..635fede 100644
--- a/user/test/com/google/gwt/user/client/ui/StackPanelTest.java
+++ b/user/test/com/google/gwt/user/client/ui/StackPanelTest.java
@@ -78,7 +78,6 @@
     // Check the header IDs
     DeferredCommand.addCommand(new Command() {
       public void execute() {
-        String prefix = UIObject.DEBUG_ID_PREFIX;
         UIObjectTest.assertDebugIdContents("myStack-text0", "header a");
         UIObjectTest.assertDebugIdContents("myStack-text1", "header b");
         UIObjectTest.assertDebugIdContents("myStack-text2", "header c");
@@ -98,7 +97,7 @@
         finishTest();
       }
     });
-    delayTestFinish(250);
+    delayTestFinish(5000);
   }
 
   /**