diff --git a/inventory/host_vars/buildvm-s390x-01.stg.s390.fedoraproject.org b/inventory/host_vars/buildvm-s390x-01.stg.s390.fedoraproject.org
index d23a13de56..d1ad13fd27 100644
--- a/inventory/host_vars/buildvm-s390x-01.stg.s390.fedoraproject.org
+++ b/inventory/host_vars/buildvm-s390x-01.stg.s390.fedoraproject.org
@@ -7,6 +7,7 @@ eth0_ipv4_gw: 10.1.102.50
 eth0_ipv4_ip: 10.1.102.254
 has_ipv4: yes
 lvm_size: 102400
+main_bridge: br0
 mem_size: 8192
 num_cpus: 2
 varnish_group: s390kojipkgs