diff --git a/roles/koji_builder/templates/kojid.conf b/roles/koji_builder/templates/kojid.conf
index e1594b932f..c268725408 100644
--- a/roles/koji_builder/templates/kojid.conf
+++ b/roles/koji_builder/templates/kojid.conf
@@ -18,7 +18,9 @@ rpmbuild_timeout=172800
 
 use_createrepo_c=True
 
-{% if koji_topurl == 'https://kojipkgs.fedoraproject.org/' %}
+{% if 'buildvm-s390x' in group_names %}
+topurl = http://kojipkgs-cache.s390.fedoraproject.org
+{% elif koji_topurl == 'https://kojipkgs.fedoraproject.org/' %}
 ; add some additional urls for failover
 topurl = {{koji_topurl}} https://kojipkgs01.fedoraproject.org https://kojipkgs02.fedoraproject.org
 {% else %}