diff --git a/playbooks/notifications/email-notify-list-of-users.yml b/playbooks/notifications/email-notify-list-of-users.yml
index 6636bcc0..0a65378f 100644
--- a/playbooks/notifications/email-notify-list-of-users.yml
+++ b/playbooks/notifications/email-notify-list-of-users.yml
@@ -15,8 +15,7 @@
     - set_fact:
         mail: "{{ mail | combine({ 'subject': title, 'body': md_to_html.html_body_message }) }}"
     - set_fact:
-        list_of_mail_to: "{{ list_of_mail_to | default([]) }} + [ '{{ item.email }}' ]"
-      with_items:
-        - "{{ list_of_users }}"
+        list_of_mail_to: "{{ list_of_mail_to | default([]) + [ item.email ] }}"
+      loop: "{{ list_of_users|flatten(levels=1) }}"
     - include_role:
         name: notifications/send-email