diff --git a/reference/sem/functions/msg-get-queue.xml b/reference/sem/functions/msg-get-queue.xml
index 2ad9d94c29..0ec63fc547 100644
--- a/reference/sem/functions/msg-get-queue.xml
+++ b/reference/sem/functions/msg-get-queue.xml
@@ -11,7 +11,7 @@
   <methodsynopsis>
    <type>resource</type><methodname>msg_get_queue</methodname>
    <methodparam><type>int</type><parameter>key</parameter></methodparam>
-   <methodparam choice="opt"><type>int</type><parameter>perms</parameter></methodparam>
+   <methodparam choice="opt"><type>int</type><parameter>perms</parameter><initializer>0666</initializer></methodparam>
   </methodsynopsis>
   <para>
    <function>msg_get_queue</function> returns an id that can be used to