diff --git a/group_vars/proxy.yml b/group_vars/proxy.yml
index 5017493..303f415 100644
--- a/group_vars/proxy.yml
+++ b/group_vars/proxy.yml
@@ -1,4 +1,7 @@
 ---
+# use bigger disk for os as we have web site data there
+dsk_size: 30
+
 network_dns_servers:
   - 172.20.20.10
   - 172.20.21.7