diff --git a/lib/redmine/export/pdf.rb b/lib/redmine/export/pdf.rb
index 27905b2..4af3c3b 100644
--- a/lib/redmine/export/pdf.rb
+++ b/lib/redmine/export/pdf.rb
@@ -255,7 +255,7 @@ module Redmine
         pdf.SetFontStyle('B',9)
         pdf.Cell(35,5, l(:field_description) + ":")
         pdf.SetFontStyle('',9)
-        pdf.MultiCell(155,5, @issue.description,"BR")
+        pdf.MultiCell(155,5, issue.description,"BR")
         
         pdf.Line(pdf.GetX, y0, pdf.GetX, pdf.GetY)
         pdf.Line(pdf.GetX, pdf.GetY, 170, pdf.GetY)