diff --git a/theme/standard/styles.php b/theme/standard/styles.php
index 080b57c7271..dbf644bb134 100644
--- a/theme/standard/styles.php
+++ b/theme/standard/styles.php
@@ -12,7 +12,8 @@
     require_once("../../config.php");                   // Load up the Moodle libraries
     $themename = basename(dirname(__FILE__));           // Name of the folder we are in
     $forceconfig = optional_param('forceconfig', '', PARAM_FILE);   // Get config from this theme
+    $lang        = optional_param('lang', '', PARAM_FILE);          // Look for styles in this language
 
-    style_sheet_setup(filemtime('styles.php'), $lifetime, $themename, $forceconfig);
+    style_sheet_setup(filemtime('styles.php'), $lifetime, $themename, $forceconfig, $lang);
    
 ?>