diff --git a/packer/proxmox/ubuntu-server-jammy/ubuntu-server-jammy.pkr.hcl b/packer/proxmox/ubuntu-server-jammy/ubuntu-server-jammy.pkr.hcl
index b118b0e..ae3fcea 100644
--- a/packer/proxmox/ubuntu-server-jammy/ubuntu-server-jammy.pkr.hcl
+++ b/packer/proxmox/ubuntu-server-jammy/ubuntu-server-jammy.pkr.hcl
@@ -17,7 +17,7 @@ variable "proxmox_api_token_secret" {
 }
 
 # Resource Definiation for the VM Template
-source "proxmox" "ubuntu-server-jammy" {
+source "proxmox-iso" "ubuntu-server-jammy" {
  
     # Proxmox Connection Settings
     proxmox_url = "${var.proxmox_api_url}"
@@ -108,7 +108,7 @@ source "proxmox" "ubuntu-server-jammy" {
 build {
 
     name = "ubuntu-server-jammy"
-    sources = ["source.proxmox.ubuntu-server-jammy"]
+    sources = ["proxmox-iso.ubuntu-server-jammy"]
 
     # Provisioning the VM Template for Cloud-Init Integration in Proxmox #1
     provisioner "shell" {