diff --git a/appendices/migration74/incompatible.xml b/appendices/migration74/incompatible.xml
index c53505f4455a..384c132d970b 100644
--- a/appendices/migration74/incompatible.xml
+++ b/appendices/migration74/incompatible.xml
@@ -278,7 +278,8 @@
    </listitem>
    <listitem>
     <simpara>
-     Potentially others working on object properties as a list.
+     Potentially others working on object properties as a list,
+     e.g. <function>array_walk</function>.
     </simpara>
    </listitem>
   </itemizedlist>
diff --git a/reference/array/functions/array-walk-recursive.xml b/reference/array/functions/array-walk-recursive.xml
index 58360aae6512..71170f555b2c 100644
--- a/reference/array/functions/array-walk-recursive.xml
+++ b/reference/array/functions/array-walk-recursive.xml
@@ -9,7 +9,7 @@
   &reftitle.description;
   <methodsynopsis>
    <type>bool</type><methodname>array_walk_recursive</methodname>
-   <methodparam><type>array</type><parameter role="reference">array</parameter></methodparam>
+   <methodparam><type class="union"><type>array</type><type>object</type></type><parameter role="reference">array</parameter></methodparam>
    <methodparam><type>callable</type><parameter>callback</parameter></methodparam>
    <methodparam choice="opt"><type>mixed</type><parameter>userdata</parameter><initializer>&null;</initializer></methodparam>
   </methodsynopsis>
diff --git a/reference/array/functions/array-walk.xml b/reference/array/functions/array-walk.xml
index 8ad3c398b000..e5e24d141ee4 100644
--- a/reference/array/functions/array-walk.xml
+++ b/reference/array/functions/array-walk.xml
@@ -9,7 +9,7 @@
   &reftitle.description;
   <methodsynopsis>
    <type>bool</type><methodname>array_walk</methodname>
-   <methodparam><type>array</type><parameter role="reference">array</parameter></methodparam>
+   <methodparam><type class="union"><type>array</type><type>object</type></type><parameter role="reference">array</parameter></methodparam>
    <methodparam><type>callable</type><parameter>callback</parameter></methodparam>
    <methodparam choice="opt"><type>mixed</type><parameter>userdata</parameter><initializer>&null;</initializer></methodparam>
   </methodsynopsis>