diff --git a/roles/koji_builder/tasks/main.yml b/roles/koji_builder/tasks/main.yml
index 56c163ce45..33799cc68c 100644
--- a/roles/koji_builder/tasks/main.yml
+++ b/roles/koji_builder/tasks/main.yml
@@ -176,10 +176,9 @@
 # oz.cfg  upstream ram and cpu definitions are not enough
 - name: oz.cfg
   copy: src=oz.cfg dest=/etc/oz/oz.cfg
-  when: not inventory_hostname.startswith('buildppc')
+  when: not inventory_hostname.startswith(('buildppc','buildvm-s390x'))
   tags:
   - koji_builder
-  when: ansible_architecture != 's390x'
 
 # install libvirtd.conf
 #