diff --git a/lib/redmine/export/pdf.rb b/lib/redmine/export/pdf.rb
index 99969725a3..4e6a3b21e3 100644
--- a/lib/redmine/export/pdf.rb
+++ b/lib/redmine/export/pdf.rb
@@ -1,3 +1,4 @@
+# encoding: utf-8
 #-- copyright
 # ChiliProject is a project management system.
 #
@@ -11,8 +12,6 @@
 # See doc/COPYRIGHT.rdoc for more details.
 #++
 
-# encoding: utf-8
-
 require 'iconv'
 require 'rfpdf/fpdf'
 require 'fpdf/chinese'