--- a/layout/generic/RubyUtils.h
+++ b/layout/generic/RubyUtils.h
@@ -2,19 +2,19 @@
 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #ifndef mozilla_RubyUtils_h_
 #define mozilla_RubyUtils_h_
 
-#include "nsTArray.h"
+#include "nsCSSAnonBoxes.h"
 #include "nsGkAtoms.h"
-#include "nsCSSAnonBoxes.h"
+#include "nsTArray.h"
 
 #define RTC_ARRAY_SIZE 1
 
 class nsRubyFrame;
 class nsRubyBaseFrame;
 class nsRubyTextFrame;
 class nsRubyContentFrame;
 class nsRubyBaseContainerFrame;