diff --git a/reference/pdo/pdostatement/debugdumpparams.xml b/reference/pdo/pdostatement/debugdumpparams.xml
index 946a3736ca..bc7063e10b 100644
--- a/reference/pdo/pdostatement/debugdumpparams.xml
+++ b/reference/pdo/pdostatement/debugdumpparams.xml
@@ -10,7 +10,7 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
-   <type>bool</type><methodname>PDOStatement::debugDumpParams</methodname>
+   <type>void</type><methodname>PDOStatement::debugDumpParams</methodname>
    <void />
   </methodsynopsis>
   <para>