diff --git a/roles/calculateKnownHosts/templates/known_hosts.j2 b/roles/calculateKnownHosts/templates/known_hosts.j2
index 47eb314c25eff70eba4a1007fbcfee8489147f27..28d5afcca141a3dd6ae0b75dc981f212380c6956 100644
--- a/roles/calculateKnownHosts/templates/known_hosts.j2
+++ b/roles/calculateKnownHosts/templates/known_hosts.j2
@@ -2,13 +2,13 @@
 {% for node in groups['all'] %}
 {% for interface in hostvars[node]['ansible_interfaces'] %}
 {% if interface != "lo" %}
-{% if hostvars[node]['ansible_ssh_host_key_rsa_public'] %}
-{% set host = {'name': node, 'ip': hostvars[node]['ansible_'+interface]['ipv4']['address'], 'keytype':'ssh-rsa', 'key': hostvars[node]['ansible_ssh_host_key_rsa_public']} %}
+{% if 'ansible_host_key_rsa_public' in hostvars[node] and hostvars[node]['ansible_host_key_rsa_public'] %}
+{% set host = {'name': node, 'ip': hostvars[node]['ansible_'+interface]['ipv4']['address'], 'keytype':'ssh-rsa', 'key': hostvars[node]['ansible_host_key_rsa_public']} %}
 {% if nodelist.append(host) %}
 {% endif %}
 {% endif %}
-{% if 'ansible_ssh_host_key_ecdsa_public' in hostvars[node] and hostvars[node]['ansible_ssh_host_key_ecdsa_public'] %}
-{% set host = {'name': node, 'ip': hostvars[node]['ansible_'+interface]['ipv4']['address'], 'keytype':'ecdsa-sha2-nistp256', 'key': hostvars[node]['ansible_ssh_host_key_ecdsa_public']} %}
+{% if 'ansible_host_key_ecdsa_public' in hostvars[node] and hostvars[node]['ansible_host_key_ecdsa_public'] %}
+{% set host = {'name': node, 'ip': hostvars[node]['ansible_'+interface]['ipv4']['address'], 'keytype':'ecdsa-sha2-nistp256', 'key': hostvars[node]['ansible_host_key_ecdsa_public']} %}
 {% if nodelist.append(host) %}
 {% endif %}
 {% endif %}