diff --git a/appendices/oop4.xml b/appendices/oop4.xml
index c8d0a08ede..6e55823ae6 100644
--- a/appendices/oop4.xml
+++ b/appendices/oop4.xml
@@ -3,7 +3,6 @@
  <appendix xml:id="oop4" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
   <title>Classes and Objects (PHP 4)</title>
 
-  
   <sect1 xml:id="keyword.class">
    <title><literal>class</literal></title>
    <para>