diff --git a/ckeditor_link.module b/ckeditor_link.module
index c86c0bd..bd2c4b2 100644
--- a/ckeditor_link.module
+++ b/ckeditor_link.module
@@ -325,7 +325,7 @@ function ckeditor_link_get_languages() {
   return $languages;
 }
 
-function ckeditor_link_url($path = NULL, $langcode, $options = array()) {
+function ckeditor_link_url($path, $langcode, $options = array()) {
   if ($langcode != LANGUAGE_NONE) {
     $languages = ckeditor_link_get_languages();
     if ($languages && isset($languages[$langcode])) {