diff --git a/reference/ibase/functions/ibase-delete-user.xml b/reference/ibase/functions/ibase-delete-user.xml
index e10ac0ddf5..b4d3d5ccaa 100644
--- a/reference/ibase/functions/ibase-delete-user.xml
+++ b/reference/ibase/functions/ibase-delete-user.xml
@@ -14,10 +14,32 @@
    <methodparam><type>string</type><parameter>user_name</parameter></methodparam>
   </methodsynopsis>
 
-  &warn.undocumented.func;
-
  </refsect1>
 
+ <refsect1 role="parameters">
+  &reftitle.parameters;
+  <para>
+   <variablelist>
+    <varlistentry>
+     <term><parameter>service_handle</parameter></term>
+     <listitem>
+      <para>
+       The handle on the database server service.
+      </para>
+     </listitem>
+    </varlistentry>
+    <varlistentry>
+     <term><parameter>user_name</parameter></term>
+     <listitem>
+      <para>
+       The login name of the user you want to delete from the database.
+      </para>
+     </listitem>
+    </varlistentry>
+   </variablelist>
+  </para>
+ </refsect1>
+ 
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>