diff --git a/inventory/host_vars/proxy09.fedoraproject.org b/inventory/host_vars/proxy09.fedoraproject.org
index 41ab69522a..ca6404af5c 100644
--- a/inventory/host_vars/proxy09.fedoraproject.org
+++ b/inventory/host_vars/proxy09.fedoraproject.org
@@ -3,6 +3,8 @@ nm: 255.255.255.192
 gw: 140.211.169.193
 dns: 8.8.8.8
 
+max_mem_size: 8192
+
 ks_url: http://infrastructure.fedoraproject.org/repo/rhel/ks/kvm-fedora-27-ext
 ks_repo: http://infrastructure.fedoraproject.org/pub/fedora/linux/releases/27/Server/x86_64/os/