diff --git a/lib/xls_report/cost_reports_controller_patch.rb b/lib/xls_report/cost_reports_controller_patch.rb
index 2fcd3a30e8..d27262db88 100644
--- a/lib/xls_report/cost_reports_controller_patch.rb
+++ b/lib/xls_report/cost_reports_controller_patch.rb
@@ -33,6 +33,8 @@ if require_dependency 'cost_reports_controller'
         # Overwrite a few mappings.
         def field_representation_map(key, value)
           case key.to_sym
+          when :units                     then value.to_i
+          when :spent_on                  then value.to_date
           when :activity_id               then mapped value, Enumeration, l(:caption_material_costs)
           when :project_id                then (l(:label_none) if value.to_i == 0) or Project.find(value.to_i).name
           when :user_id, :assigned_to_id  then (l(:label_none) if value.to_i == 0) or User.find(value.to_i).name
@@ -44,6 +46,13 @@ if require_dependency 'cost_reports_controller'
           end
         end
 
+        def show_result(row, unit_id = @unit_id)
+          case unit_id
+          when 0 then row.real_costs ? row.real_costs : '-'
+          else row.units
+          end
+        end
+
         # Build an xls file from a cost report.
         def report_to_xls
           find_optional_project