diff --git a/templates/group_created.json.j2 b/templates/group_created.json.j2
index abc4f81..232defd 100644
--- a/templates/group_created.json.j2
+++ b/templates/group_created.json.j2
@@ -440,7 +440,7 @@
       "type": "LAMBDA",
       "inputParameters": {
         "memberpolicy" : "${create_role_policy_member.output.body.id}",
-        "otherpolicies" : "${join_parallel_policy_addition.output.body.id}",
+        "otherpolicies" : "${join_parallel_policy_addition.output[*].body.id}",
         "scriptExpression": "return Java.to([$.memberpolicy].concat($.otherpolicies),'java.lang.String[]')"
       }
     },