diff --git a/reference/mongodb/mongodb/driver/readpreference/construct.xml b/reference/mongodb/mongodb/driver/readpreference/construct.xml
index 757b0226ba..53fc135911 100644
--- a/reference/mongodb/mongodb/driver/readpreference/construct.xml
+++ b/reference/mongodb/mongodb/driver/readpreference/construct.xml
@@ -11,7 +11,7 @@
   &reftitle.description;
   <methodsynopsis>
    <modifier>final</modifier> <modifier>public</modifier> <methodname>MongoDB\Driver\ReadPreference::__construct</methodname>
-   <methodparam><type>string</type><parameter>mode</parameter></methodparam>
+   <methodparam><type>int</type><parameter>mode</parameter></methodparam>
    <methodparam choice="opt"><type>array</type><parameter>tagSets</parameter></methodparam>
   </methodsynopsis>
   <para>