diff --git a/reference/pdo/configure.xml b/reference/pdo/configure.xml
index 237e4624b926..6ed2a1b7a5cf 100644
--- a/reference/pdo/configure.xml
+++ b/reference/pdo/configure.xml
@@ -2,6 +2,10 @@
 <!-- $Revision$ -->
 <section xml:id="pdo.installation" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
  &reftitle.install;
+ <para>
+  &installation.enabled.disable;
+  <option role="configure">--disable-pdo</option>
+ </para>
  <procedure xml:id="pdo.install.unix51up">
   <title>Installing PDO on Unix systems</title>
   <step>