diff --git a/RIGS/templates/RIGS/eventauthorisation_client_success.txt b/RIGS/templates/RIGS/eventauthorisation_client_success.txt
index ff934c4d..2914b045 100644
--- a/RIGS/templates/RIGS/eventauthorisation_client_success.txt
+++ b/RIGS/templates/RIGS/eventauthorisation_client_success.txt
@@ -1,6 +1,6 @@
 Hi {{ to_name|default:"there" }},
 
-Your event N{{object.event.pk|stringformat:"05d"}} has been successfully authorised for £{{object.amount}} by {{object.name}} as of {{object.last_edited_at}}.
+Your event N{{object.event.pk|stringformat:"05d"}} has been successfully authorised for £{{object.amount}} by {{object.name}} as of {{object.event.last_edited_at}}.
 
 {% if object.event.organisation and object.event.organisation.union_account %}{# internal #}
 Your event is now fully booked and payment will be processed by the finance department automatically.
diff --git a/RIGS/templates/RIGS/eventauthorisation_mic_success.txt b/RIGS/templates/RIGS/eventauthorisation_mic_success.txt
index 7548cad4..43ddd5e1 100644
--- a/RIGS/templates/RIGS/eventauthorisation_mic_success.txt
+++ b/RIGS/templates/RIGS/eventauthorisation_mic_success.txt
@@ -1,5 +1,5 @@
 Hi {{object.event.mic.get_full_name|default_if_none:"somebody"}},
 
-Just to let you know your event N{{object.event.pk|stringformat:"05d"}} has been successfully authorised for £{{object.amount}} by {{object.name}} as of {{object.last_edited_at}}.
+Just to let you know your event N{{object.event.pk|stringformat:"05d"}} has been successfully authorised for £{{object.amount}} by {{object.name}} as of {{object.event.last_edited_at}}.
 
 The TEC Rig Information Gathering System