diff --git a/packer/ubuntuserver20.04.pkr.hcl b/packer/ubuntuserver20.04.pkr.hcl
index 8b4f386..3817701 100644
--- a/packer/ubuntuserver20.04.pkr.hcl
+++ b/packer/ubuntuserver20.04.pkr.hcl
@@ -45,7 +45,7 @@ source "vsphere-iso" "ubuntuserver" {
   usb_controller          = ["xhci"]
 
   cd_files                = [
-    "packer/preseed/UbuntuServer20.04/*"
+    "packer/preseed/UbuntuServer20.04/user-data"
   ]
   cd_label                = "cidata"
   iso_checksum            = "sha256:D1F2BF834BBE9BB43FAF16F9BE992A6F3935E65BE0EDECE1DEE2AA6EB1767423"