diff --git a/xen_master.tf b/xen_master.tf
index 928cdcb..8890175 100644
--- a/xen_master.tf
+++ b/xen_master.tf
@@ -15,6 +15,11 @@ locals {
 
 resource "macaddress" "mac_master_primary" {
   prefix = [0, 22, 62]
+
+  lifecycle {
+    ignore_changes = [prefix]
+  }
+
 }
 
 resource "xenorchestra_cloud_config" "master" {
diff --git a/xen_nodes.tf b/xen_nodes.tf
index e7cdfeb..b8ddb3f 100644
--- a/xen_nodes.tf
+++ b/xen_nodes.tf
@@ -11,6 +11,11 @@ resource "random_integer" "node" {
 resource "macaddress" "mac_nodes" {
   count  = var.node_count
   prefix = [0, 22, 62]
+
+  lifecycle {
+    ignore_changes = [prefix]
+  }
+
 }
 
 resource "xenorchestra_cloud_config" "node" {
diff --git a/xen_secondaries.tf b/xen_secondaries.tf
index 7a99d55..ec7a7cf 100644
--- a/xen_secondaries.tf
+++ b/xen_secondaries.tf
@@ -52,6 +52,11 @@ EOF
 resource "macaddress" "mac_master_secondaries" {
   count  = var.master_count - 1
   prefix = [0, 22, 62]
+
+  lifecycle {
+    ignore_changes = [prefix]
+  }
+
 }