diff --git a/lib/redmine/export/pdf.rb b/lib/redmine/export/pdf.rb
index 5d75494..932f1a8 100644
--- a/lib/redmine/export/pdf.rb
+++ b/lib/redmine/export/pdf.rb
@@ -21,6 +21,8 @@ require 'rfpdf/chinese'
 module Redmine
   module Export
     module PDF
+      include ActionView::Helpers::NumberHelper
+      
       class IFPDF < FPDF
         include GLoc
         attr_accessor :footer_date
diff --git a/test/functional/issues_controller_test.rb b/test/functional/issues_controller_test.rb
index 1070261..14afd68 100644
--- a/test/functional/issues_controller_test.rb
+++ b/test/functional/issues_controller_test.rb
@@ -253,7 +253,7 @@ class IssuesControllerTest < Test::Unit::TestCase
   end
 
   def test_show_export_to_pdf
-    get :show, :id => 1, :format => 'pdf'
+    get :show, :id => 3, :format => 'pdf'
     assert_response :success
     assert_equal 'application/pdf', @response.content_type
     assert @response.body.starts_with?('%PDF')