diff --git a/EduNetworkBuilder/Resources/Level1_DuplicateMAC.enbx b/EduNetworkBuilder/Resources/Level1_DuplicateMAC.enbx
index b53a0f8..7a90cbf 100644
--- a/EduNetworkBuilder/Resources/Level1_DuplicateMAC.enbx
+++ b/EduNetworkBuilder/Resources/Level1_DuplicateMAC.enbx
@@ -303,6 +303,7 @@
           <hostname>pc0</hostname>
           <nicname>eth0</nicname>
         </myid>
+		<Mac>6A4251443d6D</Mac>
         <nictype>eth</nictype>
         <uniqueidentifier>122</uniqueidentifier>
         <usesdhcp>False</usesdhcp>
@@ -368,6 +369,7 @@
           <hostname>pc1</hostname>
           <nicname>eth0</nicname>
         </myid>
+		<Mac>6A4251443d6D</Mac>
         <nictype>eth</nictype>
         <uniqueidentifier>125</uniqueidentifier>
         <usesdhcp>False</usesdhcp>