diff --git a/vars/centos7.yml b/vars/centos7.yml
index 579a453..5fdd45a 100644
--- a/vars/centos7.yml
+++ b/vars/centos7.yml
@@ -6,5 +6,5 @@ num_cpus: 1
 
 # extra args for virt-install
 virt_install_os_args: >
-  --extra-args "ks=http://boot.foo.sh/ks/centos7.ks console=ttyS0"
+  --extra-args "ks=http://boot.foo.sh/ks/centos7.ks console=ttyS0 net.ifnames=0 ksdevice=eth0"
   --location http://centos.mirror.gnu.fi/7/os/x86_64