diff --git a/conditional_fields.module b/conditional_fields.module
index 34503a6..a92d73e 100644
--- a/conditional_fields.module
+++ b/conditional_fields.module
@@ -720,7 +720,7 @@ function conditional_fields_dependent_validate($element, &$form_state, $form) {
  */
 function conditional_fields_form_field_get_values($element, $form_state) {
   // Fall back to #parents to support custom dependencies.
-  $parents = !empty($element['#field_parents']) ? $element['#field_parents'] : $element['#parents'];
+  $parents = isset($element['#field_parents']) ? $element['#field_parents'] : $element['#parents'];
   return drupal_array_get_nested_value($form_state['values'], $parents);
 }