diff --git a/includes/html/forms/parse-service-template.inc.php b/includes/html/forms/parse-service-template.inc.php
index 0ec0ad9654..74e5746637 100644
--- a/includes/html/forms/parse-service-template.inc.php
+++ b/includes/html/forms/parse-service-template.inc.php
@@ -19,7 +19,7 @@ if (! Auth::user()->hasGlobalAdmin()) {
 $service_template_id = $vars['service_template_id'];
 
 if (is_numeric($service_template_id) && $service_template_id > 0) {
-    $service_template = service_template_get(null, $service_template_id);
+    $service_template = service_template_get($service_template_id);
 
     $output = [
         'device_group_id' => $service[0]['device_group_id'],
diff --git a/includes/services.inc.php b/includes/services.inc.php
index eb224169cd..128612942a 100644
--- a/includes/services.inc.php
+++ b/includes/services.inc.php
@@ -127,7 +127,7 @@ function add_service_template($device_group, $type, $desc, $param = '', $ignore
     return dbInsert($insert, 'services_template');
 }
 
-function service_template_get($device_group = null, $service_template = null)
+function service_template_get($service_template = null)
 {
     $sql_query = 'SELECT `service_template_id`,`device_group_id`,`service_template_ip`,`service_template_type`,`service_template_desc`,`service_template_param`,`service_template_ignore`,`service_template_changed`,`service_template_disabled` FROM `services_template` WHERE';
     $sql_param = [];
@@ -184,7 +184,7 @@ function delete_service_template($service_template = null)
 function discover_service_template($device_group, $service_template)
 {
     if (! dbFetchCell('SELECT COUNT(service_id) FROM `services` WHERE `service_template_id`= ? AND `device_group_id` = ?', [$service_template['service_template_id'], $device_group['device_group_id']])) {
-        $service = service_template_get($device_group, $service_template);
+        $service = service_template_get($service_template);
         $device_ids = dbFetchColumn('SELECT `device_id` FROM `device_group_device` WHERE `device_group_id` = ?', [$device_group]);
         foreach ($device_ids as $device) {
             add_service($device, $service);