diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 5f48944e3..bab883083 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -206,7 +206,7 @@ module ApplicationHelper
   
   def principals_check_box_tags(name, principals)
     s = ''
-    principals.each do |principal|
+    principals.sort.each do |principal|
       s << "<label>#{ check_box_tag name, principal.id, false } #{h principal}</label>\n"
     end
     s