diff --git a/appendices/about.xml b/appendices/about.xml
index 6bf6e7853e..280793c8ce 100644
--- a/appendices/about.xml
+++ b/appendices/about.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.37 $ -->
+<!-- $Revision: 1.38 $ -->
 
 <appendix id="about">
  <title>About the manual</title>
@@ -267,7 +267,7 @@ Returns the length of string.
  <sect1 id="about.phpversions">
   <title>PHP versions documented in this manual</title>
   <para>
-   This documentation contains information about bot PHP 4 and PHP 5, with
+   This documentation contains information about both PHP 4 and PHP 5, with
    some added migration and compatibility notes regarding PHP 3. Behaviour,
    parameter, return value and other changes between different PHP
    versions are documented in notes and inline text in the manual.