diff --git a/reference/regex/configure.xml b/reference/regex/configure.xml
index 1c5f24f8c7..35bd02330e 100644
--- a/reference/regex/configure.xml
+++ b/reference/regex/configure.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.1 $ -->
+<!-- $Revision: 1.2 $ -->
 <section id="regex.installation">
  &reftitle.install;
  <para>
   To enable regexp support configure PHP
-  <option role="configure">--with-regex=TYPE</option>. TYPE can be one of
+  <option role="configure">--with-regex[=TYPE]</option>. TYPE can be one of
   system, apache, php. The default is to use php.
  </para>
  <note>