diff --git a/templates/add_all_system_services_to_vre.json.j2 b/templates/add_all_system_services_to_vre.json.j2
index ab56323..28ed061 100644
--- a/templates/add_all_system_services_to_vre.json.j2
+++ b/templates/add_all_system_services_to_vre.json.j2
@@ -70,7 +70,7 @@
 			"taskReferenceName" : "extract_client_ids",
 			"type" : "SIMPLE",
 			"inputParameters" : {
-				"code" : "import xml.etree.ElementTree as ET;\nout=[]\nfor n in ET.fromstring(data.xmlstring).findAll('Resource/Profile/Name'):out.append(n.text);\nreturn out",
+				"code" : "exec('import xml.etree.ElementTree as ET') or list(map(lambda n: n.text, ET.fromstring(data['xmlstring']).findall('Resource/Profile/Name')))",
 				"xmlstring" : "${retrieve_system_services.output.body}"
 			}
 		},