diff --git a/inventory/group_vars/buildvm-stg b/inventory/group_vars/buildvm-stg
index 59c2ef0721..7754c10646 100644
--- a/inventory/group_vars/buildvm-stg
+++ b/inventory/group_vars/buildvm-stg
@@ -3,6 +3,7 @@
 volgroup: /dev/vg_guests
 lvm_size: 150000
 mem_size: 10240
+max_mem_size: "{{ mem_size }}"
 num_cpus: 4
 ks_url: http://10.5.126.23/repo/rhel/ks/buildvm-fedora-24
 ks_repo: http://10.5.126.23/pub/fedora/linux/releases/24/Server/x86_64/os/