diff --git a/lib/tasks/sync_asia_personal_data_tasks.rake b/lib/tasks/sync_asia_personal_data_tasks.rake
index 65e6982..0c10984 100644
--- a/lib/tasks/sync_asia_personal_data_tasks.rake
+++ b/lib/tasks/sync_asia_personal_data_tasks.rake
@@ -368,7 +368,7 @@ namespace :sync_asia_personal_plugins do
   task :sync,[:user_names] => [:environment] do |task,args|
     if args.user_names
       user_ids = YAML.load(args.user_names)
-      member_ids = (MemberProfile.where(:email.in=>user_ids.map{|s| s + '@asia.edu.tw' }).pluck(:id)
+      member_ids = MemberProfile.where(:email.in=>user_ids.map{|s| s + '@asia.edu.tw' }).pluck(:id)
       User.where(:user_name.in=>user_ids, :member_profile_id.nin=>member_ids).each do |u|
         query_result = get_sync_data(u.user_name)
         emp = query_result["emp"]