diff --git a/templates/group_created.json.j2 b/templates/group_created.json.j2
index 147e847..5080a68 100644
--- a/templates/group_created.json.j2
+++ b/templates/group_created.json.j2
@@ -561,7 +561,7 @@
       {
     	  "name" : "join",
           "type" : "JOIN",
-          "taskReferenceName" : "join_parallel_call_subworkflows"
+          "taskReferenceName" : "join_parallel_call_subworkflows",
 		  "joinOn :[
 		  	"call_enable_workspace_clients_for_context",
 		  	"call_jupyterhub_add_serveroptions_to_context"