diff --git a/templates/90-quota.conf.j2 b/templates/90-quota.conf.j2
index dc72756..86588a0 100644
--- a/templates/90-quota.conf.j2
+++ b/templates/90-quota.conf.j2
@@ -16,7 +16,7 @@
 
 plugin {
   quota_rule = *:storage={{ dovecot_quota_limit }}
-  {%- for key, value in dovecot_quota_additional_limit.iteritems() %}
+  {%- for key, value in dovecot_quota_additional_limit.items() %}
   quota_rule{{ loop.index + 1 }} = {{ key }}:storage=+{{ value }}
   {% endfor %}