diff --git a/postfix/templates/postscreen_cache.j2 b/postfix/templates/postscreen_cache.j2
index 0a886f89523234675fe08ae9b4ff057f4125c824..9b861ab82dc7efbb107f29b0cf32254c88488020 100644
--- a/postfix/templates/postscreen_cache.j2
+++ b/postfix/templates/postscreen_cache.j2
@@ -3,9 +3,9 @@
 #
 
 {% for partner in groups['mail'] %}
-  {% if partner != ansible_hostname %}
-memcache = inet::{{hostvars[partner]["tinc_vpnip"]}}11211
-  {% endif %}
+{% if partner != ansible_hostname %}
+memcache = inet:{{hostvars[partner]["tinc_vpnip"]}}:11211
+{% endif %}
 {% endfor %}
 
 backup = proxy:btree:/var/lib/postfix/postscreen_cache