diff --git a/app/models/custom_field.rb b/app/models/custom_field.rb
index 2762f0ee2..a09674df0 100644
--- a/app/models/custom_field.rb
+++ b/app/models/custom_field.rb
@@ -68,7 +68,7 @@ class CustomField < ActiveRecord::Base
   
   def possible_values(obj=nil)
     case field_format
-    when 'user'
+    when 'user', 'version'
       possible_values_options(obj).collect(&:last)
     else
       read_attribute :possible_values