diff --git a/inventory/host_vars/pdc.fedorainfracloud.org b/inventory/host_vars/pdc.fedorainfracloud.org
index 57782d7902..c978e031ca 100644
--- a/inventory/host_vars/pdc.fedorainfracloud.org
+++ b/inventory/host_vars/pdc.fedorainfracloud.org
@@ -14,6 +14,8 @@ public_ip: 209.132.184.106
 root_auth_users: pingou
 description: pdc development instance
 
+shared_buffers: "32MB"
+
 cloud_networks:
   # persistent-net
   - net-id: "67b77354-39a4-43de-b007-bb813ac5c35f"