diff --git a/rocky-9/server.pkr.hcl b/rocky-9/server.pkr.hcl
index ce28498..8ac7a09 100644
--- a/rocky-9/server.pkr.hcl
+++ b/rocky-9/server.pkr.hcl
@@ -53,6 +53,8 @@ source "proxmox-iso" "rocky-linux-9" {
     format       = "${var.proxmox_storage_format}"
     storage_pool = "${var.proxmox_storage_pool}"
     type         = "scsi"
+    io_thread    = false
+    discard      = true
   }
 
   scsi_controller = "virtio-scsi-pci"