diff --git a/templates/vanilla-golden-gate.pkr.hcl b/templates/vanilla-golden-gate.pkr.hcl
index 9a7dffa..00ab363 100644
--- a/templates/vanilla-golden-gate.pkr.hcl
+++ b/templates/vanilla-golden-gate.pkr.hcl
@@ -17,6 +17,7 @@ source "tart-cli" "tart" {
   cpu_count    = 4
   memory_gb    = 8
   disk_size_gb = 50
+  disk_format  = "asif"
   ssh_password = "admin"
   ssh_username = "admin"
   ssh_timeout  = "180s"