diff --git a/views_nivo_slider.module b/views_nivo_slider.module
index a824e45..e7d4786 100644
--- a/views_nivo_slider.module
+++ b/views_nivo_slider.module
@@ -19,7 +19,7 @@ function template_preprocess_views_nivo_slider_view(&$vars) {
   $view = $vars['view'];
   $options = $vars['options'];
 
-  $vars['views_nivo_slider_id'] = 'views-nivo-slider-' . $view->name . '-' . $view->current_display;
+  $vars['views_nivo_slider_id'] = drupal_html_id('views-nivo-slider-' . $view->name . '-' . $view->current_display);
 
   $vars['classes_array'][] = 'slider-wrapper';
   $vars['classes_array'][] = 'theme-' . $options['style'];