diff --git a/overlays/wwinit/etc/NetworkManager/system-connections/ww4-managed.ww b/overlays/wwinit/etc/NetworkManager/system-connections/ww4-managed.ww
index cef5b933..fc3e9807 100644
--- a/overlays/wwinit/etc/NetworkManager/system-connections/ww4-managed.ww
+++ b/overlays/wwinit/etc/NetworkManager/system-connections/ww4-managed.ww
@@ -1,15 +1,15 @@
 {{- $host := .BuildHost }}
 {{- $time := .BuildTime }}
 {{- $source := .BuildSource }}
-{{- range $connection-id, $netdev := .NetDevs }}
-{{- $filename := print "warewulf-" $connection-id  ".conf" }}
+{{- range $connection_id, $netdev := .NetDevs }}
+{{- $filename := print "warewulf-" $connection_id  ".conf" }}
 {{- file $filename }}
 # This file is autogenerated by warewulf
 # Host:   {{ $host }}
 # Time:   {{ $time }}
 # Source: {{ $source }}
 [connection]
-id={{ $connection-id }}
+id={{ $connection_id }}
 interface-name={{ $netdev.Device }}
 {{ if $netdev.Type -}}
 type={{ $netdev.Type }}