diff --git a/inventory/host_vars/db-qa02.qa.fedoraproject.org b/inventory/host_vars/db-qa02.qa.fedoraproject.org
index 1134384ab1..e6e2f65d6d 100644
--- a/inventory/host_vars/db-qa02.qa.fedoraproject.org
+++ b/inventory/host_vars/db-qa02.qa.fedoraproject.org
@@ -40,6 +40,7 @@ mariadb_root_password: "{{ dbqa01_mysql_root_password }}"
 # These are normally group variables, but in this case db servers are often different
 lvm_size: 300000
 mem_size: 8192
+max_mem_size: "{{ mem_size * 2 }}"
 num_cpus: 2
 tcp_ports: [ 5432, 443, 3306 ]
 fas_client_groups: sysadmin-qa,sysadmin-noc,sysadmin-veteran