diff --git a/proxmox/resource_vm_qemu.go b/proxmox/resource_vm_qemu.go
index 978f1b1..cbdf41a 100644
--- a/proxmox/resource_vm_qemu.go
+++ b/proxmox/resource_vm_qemu.go
@@ -91,7 +91,13 @@ func resourceVmQemu() *schema.Resource {
 						"macaddr": &schema.Schema{
 							// TODO: Find a way to set MAC address in .tf config.
 							Type:     schema.TypeString,
-							Computed: true,
+							Optional: true,
+							DiffSuppressFunc: func(k, old, new string, d *schema.ResourceData) bool {
+								if new == "" {
+									return true // macaddr auto-generates and its ok
+								}
+								return strings.TrimSpace(old) == strings.TrimSpace(new)
+							},
 						},
 						"bridge": &schema.Schema{
 							Type:     schema.TypeString,