diff --git a/booking.emails_admin.inc b/booking.emails_admin.inc
index 6c49b46..20c6bcb 100644
--- a/booking.emails_admin.inc
+++ b/booking.emails_admin.inc
@@ -430,7 +430,7 @@ function booking_manual_email_form($form, &$form_state)
     
     //add optional columns if those features are enabled
     if (variable_get('booking_enable_travelform', 0) == 1)	{
-      $options[$data->nid]['travel_form'] => $data->tid > 0 ? 'Yes' : 'No';
+      $options[$data->nid]['travel_form'] = $data->tid > 0 ? 'Yes' : 'No';
     }
     if (variable_get('booking_enable_studygroups', 0) == 1)	{
       foreach ($group_mapping as $group) {