diff --git a/reference/ibm_db2/functions/db2-num-fields.xml b/reference/ibm_db2/functions/db2-num-fields.xml
index aff008283e..d1fc778053 100644
--- a/reference/ibm_db2/functions/db2-num-fields.xml
+++ b/reference/ibm_db2/functions/db2-num-fields.xml
@@ -11,7 +11,7 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
-   <type>int</type><methodname>db2_num_fields</methodname>
+   <type class="union"><type>int</type><type>false</type></type><methodname>db2_num_fields</methodname>
    <methodparam><type>resource</type><parameter>stmt</parameter></methodparam>
   </methodsynopsis>
 
diff --git a/reference/sqlsrv/functions/sqlsrv-rows-affected.xml b/reference/sqlsrv/functions/sqlsrv-rows-affected.xml
index e2ff42edeb..6c0631b870 100644
--- a/reference/sqlsrv/functions/sqlsrv-rows-affected.xml
+++ b/reference/sqlsrv/functions/sqlsrv-rows-affected.xml
@@ -9,7 +9,7 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
-   <type>int</type><methodname>sqlsrv_rows_affected</methodname>
+   <type class="union"><type>int</type><type>false</type></type><methodname>sqlsrv_rows_affected</methodname>
    <methodparam><type>resource</type><parameter>stmt</parameter></methodparam>
   </methodsynopsis>
   <para>