diff --git a/inventory/host_vars/proxy03.fedoraproject.org b/inventory/host_vars/proxy03.fedoraproject.org
index a71bed73f8..8a88317363 100644
--- a/inventory/host_vars/proxy03.fedoraproject.org
+++ b/inventory/host_vars/proxy03.fedoraproject.org
@@ -2,7 +2,8 @@
 nm: 255.255.255.240
 gw: 66.35.62.174
 dns: 198.49.126.1
-max_mem_size: 8192
+mem_size: 4096
+max_mem_size: 4096
 
 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/