diff --git a/packer/build.pkr.hcl b/packer/build.pkr.hcl
index 6b05668..ef3bc33 100644
--- a/packer/build.pkr.hcl
+++ b/packer/build.pkr.hcl
@@ -6,7 +6,7 @@ packer {
 build {
   source "vsphere-iso.ubuntu" {
     name = "bootstrap"
-    vm_name = "${var.vm_name}-${build.PackerRunUUID}"
+    vm_name = "${var.vm_name}-{{ build `PackerRunUUID` }}"
   }
 
   provisioner "ansible" {
@@ -31,11 +31,11 @@ build {
     inline = [
       "pwsh -command \"& scripts/Update-OvfConfiguration.ps1 \\",
       " -ApplianceType '${source.name}' \\",
-      " -OVFFile '/scratch/airgapped-k8s/${var.vm_name}-${build.PackerRunUUID}.ovf' \"",
+      " -OVFFile '/scratch/airgapped-k8s/${var.vm_name}-{{ build `PackerRunUUID` }}.ovf' \"",
       "pwsh -file scripts/Update-Manifest.ps1 \\",
-      " -ManifestFileName '/scratch/airgapped-k8s/${var.vm_name}-${build.PackerRunUUID}.mf'",
+      " -ManifestFileName '/scratch/airgapped-k8s/${var.vm_name}-{{ build `PackerRunUUID` }}.mf'",
       "ovftool --acceptAllEulas --allowExtraConfig --overwrite \\",
-      " '/scratch/airgapped-k8s/${var.vm_name}-${build.PackerRunUUID}.ovf' \\",
+      " '/scratch/airgapped-k8s/${var.vm_name}-{{ build `PackerRunUUID` }}.ovf' \\",
       " /output/airgapped-k8s.${source.name}.ova"
     ]
   }
@@ -44,7 +44,7 @@ build {
 build {
   source "vsphere-iso.ubuntu" {
     name = "upgrade"
-    vm_name = "${var.vm_name}-${build.PackerRunUUID}"
+    vm_name = "${var.vm_name}-{{ build `PackerRunUUID` }}"
   }
 
   provisioner "ansible" {
@@ -69,11 +69,11 @@ build {
     inline = [
       "pwsh -command \"& scripts/Update-OvfConfiguration.ps1 \\",
       " -ApplianceType '${source.name}' \\",
-      " -OVFFile '/scratch/airgapped-k8s/${var.vm_name}-${build.PackerRunUUID}.ovf' \"",
+      " -OVFFile '/scratch/airgapped-k8s/${var.vm_name}-{{ build `PackerRunUUID` }}.ovf' \"",
       "pwsh -file scripts/Update-Manifest.ps1 \\",
-      " -ManifestFileName '/scratch/airgapped-k8s/${var.vm_name}-${build.PackerRunUUID}.mf'",
+      " -ManifestFileName '/scratch/airgapped-k8s/${var.vm_name}-{{ build `PackerRunUUID` }}.mf'",
       "ovftool --acceptAllEulas --allowExtraConfig --overwrite \\",
-      " '/scratch/airgapped-k8s/${var.vm_name}-${build.PackerRunUUID}.ovf' \\",
+      " '/scratch/airgapped-k8s/${var.vm_name}-{{ build `PackerRunUUID` }}.ovf' \\",
       " /output/airgapped-k8s.${source.name}.ova"
     ]
   }