--- C:/original/mass_contact.install	Sat Jul 19 22:13:00 2008
+++ C:/new/mass_contact.install	Thu Feb 12 11:17:16 2009
@@ -90,7 +90,8 @@
   variable_del('mass_contact_message_suffix');
   variable_del('mass_contact_nodecc_d');
   variable_del('mass_contact_optout_d');
-  variable_del('mass_contact_recipient_limit');
+  variable_del('mass_contact_recipient_limit');
+  variable_del('mass_contact_job_queue');
 }