diff --git a/chapters/config.xml b/chapters/config.xml
index 493497b54e..51acf59256 100644
--- a/chapters/config.xml
+++ b/chapters/config.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.86 $ -->
+<!-- $Revision: 1.87 $ -->
  <chapter id="configuration">
   <title>Configuration</title>
 
@@ -96,8 +96,8 @@ include_path = ".;c:\php\lib"
         <para>
          Sets the value of the specified directive.
          Can be used only with PHP_INI_ALL and PHP_INI_PERDIR type directives.
-	 To clear a previously set value use <literal>none</literal>
-	 as the value.
+         To clear a previously set value use <literal>none</literal>
+         as the value.
          <informalexample>
           <programlisting role="ini">
 <![CDATA[