diff --git a/htdocs/core/class/translate.class.php b/htdocs/core/class/translate.class.php
index 04d65fa74e8..7b6ef9bbde1 100644
--- a/htdocs/core/class/translate.class.php
+++ b/htdocs/core/class/translate.class.php
@@ -45,10 +45,10 @@ class Translate
 	/**
 	 *	Constructor
 	 *
-	 *  @param	string	$dir            Force directory that contains /langs subdirectory (value is sometine '..' like into install/* pages or support/* pages).
+	 *  @param	string	$dir            Force directory that contains /langs subdirectory (value is sometimes '..' like into install/* pages or support/* pages). Use '' by default.
 	 *  @param  Conf	$conf			Object with Dolibarr configuration
 	 */
-	function __construct($dir,$conf)
+	function __construct($dir, $conf)
 	{
 		if (! empty($conf->file->character_set_client)) $this->charset_output=$conf->file->character_set_client;	// If charset output is forced
 		if ($dir) $this->dir=array($dir);