diff --git a/plugins/context_reaction_block.inc b/plugins/context_reaction_block.inc
index c14aa98..c1a0ab1 100644
--- a/plugins/context_reaction_block.inc
+++ b/plugins/context_reaction_block.inc
@@ -272,7 +272,7 @@ class context_reaction_block extends context_reaction {
     static $requirements;
     if (!isset($requirements) || $reset) {
       global $user;
-      if ($user->uid) {
+      if ($user->uid && variable_get('context_ui_dialog_enabled', FALSE)) {
         $requirements = TRUE;
         drupal_add_library('system', 'ui.droppable');
         drupal_add_library('system', 'ui.sortable');