diff --git a/roles/lmn_vm/files/vm-run b/roles/lmn_vm/files/vm-run
index a957a49..700a0ab 100755
--- a/roles/lmn_vm/files/vm-run
+++ b/roles/lmn_vm/files/vm-run
@@ -267,6 +267,7 @@ while true; do
               type="ethernet,mac=${mac},target.dev=${interface},xpath1.set=./target/@managed=no,model.type=virtio"
 	      LIBVIRTOPTS="${LIBVIRTOPTS} --network type=$type"
 	    done
+	    LIBVIRTOPTS="${LIBVIRTOPTS} --check mac_in_use=off"
 	    shift
 	    ;;
     --os )