diff --git a/arch-template.json b/arch-template.json
index b70e8be..301ae71 100644
--- a/arch-template.json
+++ b/arch-template.json
@@ -11,7 +11,7 @@
             "iso_checksum": "{{user `iso_checksum`}}",
             "iso_checksum_type": "{{user `iso_checksum_type`}}",
             "guest_os_type": "ArchLinux_64",
-            "guest_additions_attach": "true",
+            "guest_additions_mode": "disable",
             "http_directory": ".",
             "boot_wait": "5s",
             "boot_command": [