Index: /mods/wpsg_mod_deliverytime.class.php
===================================================================
--- /mods/wpsg_mod_deliverytime.class.php	(revision 6769)
+++ /mods/wpsg_mod_deliverytime.class.php	(revision 6771)
@@ -313,4 +313,5 @@
 
 				$temp = $oProduct->wpsg_mod_deliverytime_deliverytime;
+                
 				if (wpsg_isSizedInt($temp))
 				{
@@ -320,5 +321,5 @@
 
 				}
-				else if (wpsg_isSizedInt($this->shop->get_option('wpsg_mod_deliverytime_mode_days_default')) && $oProduct->wpsg_mod_deliverytime_deliverytime != '0')
+				else if (wpsg_isSizedString($this->shop->get_option('wpsg_mod_deliverytime_mode_days_default')))
 				{