diff --git a/inventory/group_vars/mbs_backend b/inventory/group_vars/mbs_backend
index 5c4dbdd05e..95edeb9c5c 100644
--- a/inventory/group_vars/mbs_backend
+++ b/inventory/group_vars/mbs_backend
@@ -1,6 +1,6 @@
 ---
 lvm_size: 20000
-mem_size: 4096
+mem_size: 16384
 num_cpus: 2
 
 # for systems that do not match the above - specify the same parameter in