diff --git a/user/test/com/google/gwt/uibinder/sample/client/UiBinderTest.java b/user/test/com/google/gwt/uibinder/sample/client/UiBinderTest.java
index 520ea8b..391303e 100644
--- a/user/test/com/google/gwt/uibinder/sample/client/UiBinderTest.java
+++ b/user/test/com/google/gwt/uibinder/sample/client/UiBinderTest.java
@@ -236,6 +236,7 @@
     WidgetBasedUi.Style style();
   }
 
+  @DoNotRunWith(Platform.Htmlunit)
   public void testNoOverrideInheritedSharedCssClasses() {
     Bundle bundle = GWT.create(Bundle.class);
     WidgetBasedUi ui = GWT.create(WidgetBasedUi.class);