diff --git a/xml.go b/xml.go
index dc856b3..dbfd17d 100644
--- a/xml.go
+++ b/xml.go
@@ -76,3 +76,29 @@ func addDefaults(d *libvirtxml.Domain, filename string) {
 		return
 	}
 }
+
+func simpleDisk(domcfg *libvirtxml.Domain, filename string) {
+	// Clear out the existing disks (if any)
+	domcfg.Devices.Disks = nil
+
+	// Define a new disk with "mynew.qcow2"
+	newDisk := libvirtxml.DomainDisk{
+		Device: "disk",
+		Driver: &libvirtxml.DomainDiskDriver{
+			Name: "qemu",
+			Type: "qcow2",
+		},
+		Source: &libvirtxml.DomainDiskSource{
+			File: &libvirtxml.DomainDiskSourceFile{
+				File: filename,
+			},
+		},
+		Target: &libvirtxml.DomainDiskTarget{
+			Dev: "vda",
+			Bus: "virtio",
+		},
+	}
+
+	// Add the new disk to the domain configuration
+	domcfg.Devices.Disks = append(domcfg.Devices.Disks, newDisk)
+}