diff --git a/chosen.module b/chosen.module
index 33fea32..9c3c2a6 100644
--- a/chosen.module
+++ b/chosen.module
@@ -180,10 +180,13 @@ function chosen_element_info_alter(&$info) {
  */
 function chosen_pre_render_select($element) {
   $field_info = isset($element['#field_name']) ? field_info_field($element['#field_name']) : FALSE;
-  $is_admin = path_is_admin(current_path()) || current_path() == 'system/ajax';
+
   // Exclude chosen from admin pages.
-  if ($is_admin && !variable_get('chosen_admin_pages', TRUE)) {
-    return $element;
+  if (!variable_get('chosen_admin_pages', TRUE)) {
+    global $theme;
+    if ($theme == variable_get('admin_theme', '')) {
+      return $element;
+    }
   }
 
   $element_name = $element['#name'];