diff --git a/app/models/custom_field.rb b/app/models/custom_field.rb
index 24ec67a..5d528cd 100644
--- a/app/models/custom_field.rb
+++ b/app/models/custom_field.rb
@@ -139,7 +139,6 @@ class CustomField < ActiveRecord::Base
     case field_format
       when 'string', 'text', 'list', 'date', 'bool'
         # COALESCE is here to make sure that blank and NULL values are sorted equally
-        self.custom_values.first.to_sql
         "COALESCE((SELECT cv_sort.value FROM #{CustomValue.table_name} cv_sort" +
           " WHERE cv_sort.customized_type='#{self.class.customized_class.base_class.name}'" +
           " AND cv_sort.customized_id=#{self.class.customized_class.table_name}.id" +