diff --git a/reference/pdo/pdostatement/execute.xml b/reference/pdo/pdostatement/execute.xml
index 3439ef369b..ad048f304f 100644
--- a/reference/pdo/pdostatement/execute.xml
+++ b/reference/pdo/pdostatement/execute.xml
@@ -11,7 +11,7 @@
   &reftitle.description;
   <methodsynopsis>
    <type>bool</type><methodname>PDOStatement::execute</methodname>
-   <methodparam choice="opt"><type>array</type><parameter>input_parameters</parameter><initializer>array()</initializer></methodparam>
+   <methodparam choice="opt"><type>array</type><parameter>input_parameters</parameter></methodparam>
   </methodsynopsis>
   <para>
    Execute the prepared statement. If the prepared statement included