diff --git a/geant/gap_ansible/roles/promote_p_to_pe/templates/routers/nokia/router/bgp_group.j2 b/geant/gap_ansible/roles/promote_p_to_pe/templates/routers/nokia/router/bgp_group.j2
index fad9162f1e2e78301f789d2a5ba8f00292cac42f..78e3216af26cd17110785252e70d8940dd213eca 100644
--- a/geant/gap_ansible/roles/promote_p_to_pe/templates/routers/nokia/router/bgp_group.j2
+++ b/geant/gap_ansible/roles/promote_p_to_pe/templates/routers/nokia/router/bgp_group.j2
@@ -2,6 +2,9 @@
                 <group alu:operation="replace">
                     <group-name>{{ group.name }}</group-name>
                     <admin-state>{{ group.admin_state | default('enable') }}</admin-state>
+                    {% if group.auth_key is defined %}
+                    <authentication-key>{{ group.auth_key }}</authentication-key>
+                    {% endif %}
                     {% if group.nhs is defined %}
                     <next-hop-self>{{ group.nhs }}</next-hop-self>
                     {% endif %}