diff --git a/templates/networking.j2 b/templates/networking.j2
index f2dd825..caae990 100644
--- a/templates/networking.j2
+++ b/templates/networking.j2
@@ -17,6 +17,9 @@ iface br0
 {% else %}
 iface eth0
 {% endif %}
+{% if hw_address is defined %}
+    hwaddress ether {{ hw_address }}
+{% endif %}
 {% if wanted_ip4 is defined %}
     address {{ wanted_ip4 }}/24
     gateway {{ local_network.gateway }}