diff --git a/sites/all/modules/field_group/field_group.module b/sites/all/modules/field_group/field_group.module
index 3254e51..623ddc7 100755
--- a/sites/all/modules/field_group/field_group.module
+++ b/sites/all/modules/field_group/field_group.module
@@ -644,7 +644,10 @@ function field_group_pre_render_accordion(&$element, $group, &$form) {
   $effect = isset($group->format_settings['instance_settings']['effect']) ? $group->format_settings['instance_settings']['effect'] : 'none';
 
   $group->classes .= " effect-$effect";
-
+  
+  // Add the ui.accordion library
+  drupal_add_library('system', 'ui.accordion');
+  
   $element += array(
     '#type' => 'markup',
     '#prefix' => '<div class="field-group-' . $group->format_type . '-wrapper ' . $group->classes . '">',