diff --git a/bitcrazeVM_createVM.json b/bitcrazeVM_createVM.json
index d3915e2..b7216c2 100644
--- a/bitcrazeVM_createVM.json
+++ b/bitcrazeVM_createVM.json
@@ -13,7 +13,8 @@
       "guest_os_type": "Ubuntu_64",
       "hard_drive_interface": "sata",
       "http_directory": "http",
-      "iso_checksum": "md5:e5bf713621b43207dead707396da29f6",
+      "iso_checksum": "e5bf713621b43207dead707396da29f6",
+      "iso_checksum_type": "md5",
       "iso_url": "http://archive.ubuntu.com/ubuntu/dists/focal/main/installer-amd64/current/legacy-images/netboot/mini.iso",
       "shutdown_command": "echo {{user `password`}} | sudo -S shutdown -P now",
       "ssh_password": "{{user `password`}}",