diff --git a/etc/kayobe/kolla/config/ironic.conf b/etc/kayobe/kolla/config/ironic.conf
index 45f8488..1c3c0df 100644
--- a/etc/kayobe/kolla/config/ironic.conf
+++ b/etc/kayobe/kolla/config/ironic.conf
@@ -1,2 +1,6 @@
 [DEFAULT]
 minimum_required_memory = 256
+
+[deploy]
+# Use bios boot mode until Tenks supports UEFI
+default_boot_mode = bios