diff --git a/files/apts/n-cpu b/files/apts/n-cpu
index 06c21a2..a40b659 100644
--- a/files/apts/n-cpu
+++ b/files/apts/n-cpu
@@ -2,3 +2,4 @@
 lvm2
 open-iscsi
 open-iscsi-utils
+genisoimage