diff --git a/public_html/sites/all/modules/contrib/ctools/plugins/export_ui/ctools_export_ui.class.php b/public_html/sites/all/modules/contrib/ctools/plugins/export_ui/ctools_export_ui.class.php
index 930965a..1d283ed 100644
--- a/public_html/sites/all/modules/contrib/ctools/plugins/export_ui/ctools_export_ui.class.php
+++ b/public_html/sites/all/modules/contrib/ctools/plugins/export_ui/ctools_export_ui.class.php
@@ -1012,7 +1012,7 @@ class ctools_export_ui {
       '#title' => t($schema['export']['key name']),
       '#type' => 'textfield',
       '#default_value' => $item->{$export_key},
-      '#description' => t('The unique ID for this @export.', array('@export' => $this->plugin['title singular'])),
+      '#description' => t('The unique ID for this @export. It can only consist of lowercase letters, underscores, and numbers.', array('@export' => $this->plugin['title singular'])),
       '#required' => TRUE,
       '#maxlength' => 255,
     );