diff --git a/etc/SIPconfig.xml b/etc/SIPconfig.xml
index ece246651a..1e5c2314a2 100644
--- a/etc/SIPconfig.xml
+++ b/etc/SIPconfig.xml
@@ -54,6 +54,7 @@
              cv_send_00_on_success="1"
              ct_always_send="1"
              cv_triggers_alert="1"
+             allow_empty_passwords="1"
              ae_field_template="[% patron.surname %][% IF patron.firstname %], [% patron.firstname %][% END %]"
              da_field_template="[% patron.surname %][% IF patron.firstname %], [% patron.firstname %][% END %]"
              av_field_template="[% accountline.description %] [% accountline.amountoutstanding | format('%.2f') %]"