diff --git a/reference/strings/functions/setlocale.xml b/reference/strings/functions/setlocale.xml
index 3aea58d751..bdbb070b51 100644
--- a/reference/strings/functions/setlocale.xml
+++ b/reference/strings/functions/setlocale.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.7 $ -->
+<!-- $Revision: 1.8 $ -->
 <!-- splitted from ./en/functions/strings.xml, last change in rev 1.2 -->
   <refentry id="function.setlocale">
    <refnamediv>
@@ -12,7 +12,7 @@
       <type>string</type><methodname>setlocale</methodname>
       <methodparam><type>mixed</type><parameter>category</parameter></methodparam>
       <methodparam><type>string</type><parameter>locale</parameter></methodparam>
-      <methodparam choice='opt'><type>string</type><parameter>...</parameter></methodparam>
+      <methodparam choice="opt"><type>string</type><parameter>...</parameter></methodparam>
      </methodsynopsis>
      <methodsynopsis>
       <type>string</type><methodname>setlocale</methodname>