diff --git a/plugins/views_plugin_cache.inc b/plugins/views_plugin_cache.inc
index 4d21701..dcaf73d 100644
--- a/plugins/views_plugin_cache.inc
+++ b/plugins/views_plugin_cache.inc
@@ -203,22 +203,22 @@ class views_plugin_cache extends views_plugin {
     // Slightly less simple for CSS:
     $css = drupal_add_css();
     $css_start = isset($this->storage['css']) ? $this->storage['css'] : array();
-    $this->storage['css'] = array_diff_assoc($css, $css_start);
+    $this->storage['css'] = drupal_array_diff_assoc_recursive($css, $css_start);
 
     // Get javascript after/before views renders.
     $js = drupal_add_js();
     $js_start = isset($this->storage['js']) ? $this->storage['js'] : array();
     // If there are any differences between the old and the new javascript then
     // store them to be added later.
-    $this->storage['js'] = array_diff_assoc($js, $js_start);
+    $this->storage['js'] = drupal_array_diff_assoc_recursive($js, $js_start);
 
     // Special case the settings key and get the difference of the data.
     $settings = isset($js['settings']['data']) ? $js['settings']['data'] : array();
     $settings_start = isset($js_start['settings']['data']) ? $js_start['settings']['data'] : array();
-    $this->storage['js']['settings'] = array_diff_assoc($settings, $settings_start);
+    $this->storage['js']['settings'] = drupal_array_diff_assoc_recursive($settings, $settings_start);
 
     // Get difference of HTTP headers.
-    $this->storage['headers'] = array_diff_assoc(drupal_get_http_header(), $this->storage['headers']);
+    $this->storage['headers'] = drupal_array_diff_assoc_recursive(drupal_get_http_header(), $this->storage['headers']);
   }
 
   /**
diff --git a/views.info b/views.info
index 60878fc..961a7cf 100644
--- a/views.info
+++ b/views.info
@@ -8,6 +8,8 @@ php = 5.2
 stylesheets[all][] = css/views.css
 
 dependencies[] = ctools
+dependencies[] = system (>=7.23)
+
 ; Handlers
 files[] = handlers/views_handler_area.inc
 files[] = handlers/views_handler_area_result.inc