diff --git a/roles/koji_builder/templates/kojid.conf b/roles/koji_builder/templates/kojid.conf
index c728f8dc8b..d054ecb2ec 100644
--- a/roles/koji_builder/templates/kojid.conf
+++ b/roles/koji_builder/templates/kojid.conf
@@ -144,11 +144,11 @@ keytab = /etc/kojid/kojid.keytab
 {% set plugins = [] %}
 
 {% if 'runroot' in group_names %}
-{% plugins.append = ['runroot'] %}
+{{ plugins.append("runroot") }}
 {% endif %}
 
 {% if ansible_architecture == 'x86_64' and not inventory_hostname.startswith('bkernel') %}
-{% plugins.append = ['builder_containerbuild'] %}
+{{ plugins.append("builder_containerbuild") }}
 {% endif %}
 
 {% if env == 'staging' %}