diff --git a/src/app/code/community/Zendesk/Zendesk/Model/Resource/Tickets/Collection.php b/src/app/code/community/Zendesk/Zendesk/Model/Resource/Tickets/Collection.php
index 19c906e9..4aaaba4c 100644
--- a/src/app/code/community/Zendesk/Zendesk/Model/Resource/Tickets/Collection.php
+++ b/src/app/code/community/Zendesk/Zendesk/Model/Resource/Tickets/Collection.php
@@ -115,6 +115,8 @@ public function addFieldToFilter($fieldName, $condition = null) {
     }
 
     public function getCollection(array $params = array()) {
+        require_once (Mage::getModuleDir('', 'Zendesk_Zendesk') . DS . 'lib' . DS .'functions.php');
+
         $searchQuery = array(
             'query' => $this->_search->getString(),
         );
diff --git a/src/app/code/community/Zendesk/Zendesk/functions.php b/src/app/code/community/Zendesk/Zendesk/lib/functions.php
similarity index 100%
rename from src/app/code/community/Zendesk/Zendesk/functions.php
rename to src/app/code/community/Zendesk/Zendesk/lib/functions.php