diff --git a/reference/strings/functions/number-format.xml b/reference/strings/functions/number-format.xml
index b6fb162684..5b5628f6f7 100644
--- a/reference/strings/functions/number-format.xml
+++ b/reference/strings/functions/number-format.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.3 $ -->
+<!-- $Revision: 1.4 $ -->
 <!-- splitted from ./en/functions/math.xml, last change in rev 1.2 -->
   <refentry id="function.number-format">
    <refnamediv>
@@ -12,8 +12,13 @@
       <type>string</type><methodname>number_format</methodname>
       <methodparam><type>float</type><parameter>number</parameter></methodparam>
       <methodparam choice="opt"><type>int</type><parameter>decimals</parameter></methodparam>
-      <methodparam choice="opt"><type>string</type><parameter>dec_point</parameter></methodparam>
-      <methodparam choice="opt"><type>string</type><parameter>thousands_sep</parameter></methodparam>
+     </methodsynopsis>
+     <methodsynopsis>
+      <type>string</type><methodname>number_format</methodname>
+      <methodparam><type>float</type><parameter>number</parameter></methodparam>
+      <methodparam><type>int</type><parameter>decimals</parameter></methodparam>
+      <methodparam><type>string</type><parameter>dec_point</parameter></methodparam>
+      <methodparam><type>string</type><parameter>thousands_sep</parameter></methodparam>
      </methodsynopsis>
     <para>
      <function>number_format</function> returns a formatted version of