--- a/core/storagemanager.lua	Wed Sep 02 14:14:22 2015 +0200
+++ b/core/storagemanager.lua	Wed Sep 02 14:23:09 2015 +0200
@@ -136,6 +136,7 @@
 	load_driver = load_driver;
 	get_driver = get_driver;
 	open = open;
+	purge = purge;
 
 	olddm = olddm;
 };