diff --git a/includes/plugins.inc b/includes/plugins.inc
index 10f21733b62584c3644b6d2b6b84abdd1b788f0f..cb6c7e448602215eec0294b373a19cb0992f6fd2 100644
--- a/includes/plugins.inc
+++ b/includes/plugins.inc
@@ -575,7 +575,7 @@ function plugin_title() {
  * Get enabled display extenders.
  */
 function views_get_enabled_display_extenders() {
-  $enabled = array_filter(config('views.settings')->get('views_display_extenders'));
+  $enabled = array_filter((array) config('views.settings')->get('views_display_extenders'));
   $options = views_fetch_plugin_names('display_extender');
   foreach ($options as $name => $plugin) {
     $enabled[$name] = $name;