diff --git a/rislunsj.sunet.se/overlay/etc/netplan/01-netcfg.yaml b/rislunsj.sunet.se/overlay/etc/netplan/01-netcfg.yaml
index ec9eab2..0bd159d 100644
--- a/rislunsj.sunet.se/overlay/etc/netplan/01-netcfg.yaml
+++ b/rislunsj.sunet.se/overlay/etc/netplan/01-netcfg.yaml
@@ -1,3 +1,5 @@
+# This file is managed by puppet
+#
 network:
   version: 2
   ethernets: