diff --git a/custom_search.module b/custom_search.module
index 7bbc133..5d3dcec 100644
--- a/custom_search.module
+++ b/custom_search.module
@@ -104,7 +104,7 @@ function custom_search_form_alter(&$form, &$form_state, $form_id) {
 
     case 'search_form':
 
-      if ($form['module']['#value'] == 'node' && isset($form['advanced'])) {
+      if (isset($form['module']) && $form['module']['#value'] == 'node' && isset($form['advanced'])) {
 
         // Criteria
         if (!variable_get('custom_search_advanced_or_display', TRUE)) $form['advanced']['keywords']['or']['#type'] = 'hidden';
@@ -511,4 +511,4 @@ function _custom_search_filter_keys($val) {
  */
 function custom_search_filter_array($value = FALSE) {
   return $value !== 0;
-}
\ No newline at end of file
+}
diff --git a/includes/forms.inc b/includes/forms.inc
index 1b6a5a4..980a7c6 100644
--- a/includes/forms.inc
+++ b/includes/forms.inc
@@ -1,4 +1,8 @@
 <?php
+/**
+ * @file
+ * Search forms
+ */
 
 /**
  * Default admin form.
diff --git a/js/custom_search.js b/js/custom_search.js
index 980c74b..a34b7eb 100644
--- a/js/custom_search.js
+++ b/js/custom_search.js
@@ -1,4 +1,3 @@
-
 (function($) {
   Drupal.behaviors.custom_search = {
     attach: function(context) {