diff --git a/install_minimal/upgrades/airtime-2.5.3/StorageQuotaUpgrade.php b/install_minimal/upgrades/airtime-2.5.3/StorageQuotaUpgrade.php
index 0bfe3df1e..d039df381 100644
--- a/install_minimal/upgrades/airtime-2.5.3/StorageQuotaUpgrade.php
+++ b/install_minimal/upgrades/airtime-2.5.3/StorageQuotaUpgrade.php
@@ -12,10 +12,11 @@ set_include_path(implode(PATH_SEPARATOR, array(
 
 //Propel classes.
 set_include_path(APPLICATION_PATH . '/models' . PATH_SEPARATOR . get_include_path());
-set_include_path(APPLICATION_PATH . '/models/om' . PATH_SEPARATOR . get_include_path());
-set_include_path(APPLICATION_PATH . '/models/airtime' . PATH_SEPARATOR . get_include_path());
+#set_include_path(APPLICATION_PATH . '/models/om' . PATH_SEPARATOR . get_include_path());
+#set_include_path(APPLICATION_PATH . '/models/airtime' . PATH_SEPARATOR . get_include_path());
 
 require_once 'CcMusicDirsQuery.php';
+require_once 'BaseCcMusicDirsQuery.php';
 
 class StorageQuotaUpgrade
 {