diff --git a/package/etc/go_templates/source_network.t b/package/etc/go_templates/source_network.t
index b4e5353..a2ef26f 100644
--- a/package/etc/go_templates/source_network.t
+++ b/package/etc/go_templates/source_network.t
@@ -23,7 +23,7 @@ source s_{{ .port_id }} {
     channel {
         source {
 {{- if or (getenv (print "SC4S_LISTEN_" .port_id "_UDP_PORT")) (eq .port_id "DEFAULT") }}
-{{- range (math.Seq (getenv "SC4S_SOURCE_LISTEN_UDP_INSTANCES" "5"))}}
+{{- range (math.Seq (getenv "SC4S_SOURCE_LISTEN_UDP_SOCKETS" "5"))}}
 {{- $context := dict "instance" . "port_id" "DEFAULT" }}
 {{- template "UDP"  $context }}
 {{- end}}
@@ -206,4 +206,4 @@ source s_{{ .port_id }} {
 {{- end -}}
 {{- if or (or (or (getenv  (print "SC4S_LISTEN_" .port_id "_TCP_PORT")) (getenv  (print "SC4S_LISTEN_" .port_id "_UDP_PORT"))) (getenv  (print "SC4S_LISTEN_" .port_id "_TLS_PORT"))) (eq .port_id "DEFAULT") -}}
 {{- template "T1" (.) -}}
-{{- end -}}
\ No newline at end of file
+{{- end -}}